scholarly journals Kandungan Logam Berat Seng pada Enhalus acoroides di Perairan Jepara

2019 ◽  
Vol 8 (1) ◽  
pp. 9
Author(s):  
Bagus Apriana Putra ◽  
Adi Santoso ◽  
Ita Riniatsih

Lamun adalah tanaman air yang berbunga (Antophyta) dan mempunyai kemampuan adaptasi untuk hidup dan tumbuh di lingkungan laut.Enhalus acoroidesmerupakan jenis lamun yang banyak tumbuh di sekitar perairan Teluk Awur dan Pulau Panjang. Kegiatan manusia meliputi pertanian, industri mebel, pariwisata, dan kegiatan nelayan  di Teluk Awur dan Pulau Panjang diduga menjadi sumber logam berat Seng (Zn). Keberadaan lamun di laut dapat menjadi bioindikator pencemaran logam berat karena menyerap dan mengakumulasi bahan pencemar. Tujuan penelitian ini adalah mengetahui dan membandingkan kandungan logam berat seng (Zn)pada lamun Enhalus acoroides (akar dan daun), pada air dan pada sedimen di Teluk Awur dan Pulau Panjang. Penelitian ini menggunakan metode deskriptif, sedangkan metode penentuan lokasi menggunakan metode purposive sampling. Materi yang digunakan dalam penelitian ini adalah sampel lamun Enhalus acoroides, air, dan sedimen.Parameter lingkungan seperti suhu, salinitas, oksigen terlarut, kecerahan, pH dan arus diukur secara in situ. Hasil penelitian menunjukkan nilai akumulasi Zn pada akar Enhalus acoroides  di Teluk Awur berkisar antara 0,98–1,27 mg/l dan pada daun 0,4–0,89 mg/l, sedangkan akumulasi logam berat Zn pada akar Enhalus acoroides di Pulau Panjangberkisar antara 0,78–1,01 mg/l dan pada daun 0,34–0,75 mg/l. Kemampuan lamun Enhalus acoroides yang ada di Teluk Awur dan Pulau Panjang dalam mengakumulasi logam berat Zn termasuk dalam kategori rendah dengan nilai faktor biokonsentrasi rata-rata <250.  Seagrass is a flowering water plant (Antophyta) and can adapt to live and grow in the marine environment. Enhalus acoroides is a type of seagrass that grows around Teluk Awur and Panjang Island. All human activities including agriculture, tourism, and fishing activities in Teluk Awur and Panjang Island may be the source of heavy metals Zinc (Zn). The presence of seagrass in the sea can be a bioindicator of heavy metal pollution due to absorb and accumulate contaminants. The purposes of this research were to know and compare the content of heavy metals (Zn in seagrass Enhalus acoroides (root and leaf), on water and in sediments in Teluk Awur and Panjang Island.  This research used the descriptive method, while the method of determining the location used purposive sampling method. The material used in this research were the samples of Enhalus acoroides, water, and sediment. Environmental parameters such as temperature, salinity, dissolved oxygen, clarity, pH and current flow were determined in situ. The results showed the value of the accumulation of heavy metal Zn from the root of Enhalus acoroides in Teluk Awur ranging between 0.98–1.27 mg/l and 0.41–0.89 mg/l from the leaves, while the accumulation of heavy metal Zinc (Zn) from the root of Enhalus acoroides in Panjang Island range between 0,78–1.01 mg/l and 0.34–0.75 mg/l from the leaves. The ability of Enhalus acoroides in Teluk Awur and Panjang Island to accumulate the heavy metals Zn were low category because of bioconcentrating factor value <250. 

2020 ◽  
Vol 9 (3) ◽  
pp. 230-236
Author(s):  
Zhulian Hikmah Hasibuan ◽  
Bambang Yulianto ◽  
Ria Azizah Tri Nuraini

ABSTRAK: Pantai Bandengan dan Pulau Panjang merupakan salah satu tempat obyek wisata yang berada di Jepara. Aktivitas perkapalan merupakan salah satu sumber penyebab masuknya bahan pencemar logam berat kedalam perairan. Tujuan penelitian ini adalah mengetahui kandungan logam berat Pb (Timbal) pada air, sedimen dan lamun Enhalus acoroides (akar, batang dan daun), dan mengetahui kemampuan Enhalus acoroides dalam mengakumulasi dan Translokasi logam berat Pb di perairan Pantai Bandengan dan Pulau Panjang, Jepara. Penelitian ini menggunakan metode deskriptif analitik, sedangkan metode penentuan lokasi menggunakan metode purposive sampling. Materi yang digunakan dalam penelitian ini adalah sampel, air, sedimen dan akar, batang, daun lamun Enhalus acoroides. Penelitian dilaksanakan pada bulan Oktober-November 2019. Analisis sampel dilakukan di Laboratorium Kimia Analitik Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Gadjah Mada. Hasil penelitian menunjukan nilai akumulasi logam berat Pb (Timbal) pada akar Enhalus acoroides di Pantai Bandengan berkisar antara 1,83 – 2,16 mg/l dan pada Daun berkisar antara 1,50 – 2,16 mg/l, sedangkan akumulasi logam berat pada Pb (Timbal) pada akar Enhalus acoroides di Pulau Panjang berkisar antara 1,66 – 2,82 mg/l dan pada daun  1,33 – 2,98 mg/l. Kemampuan lamun Enhalus acoroides yang ada di Pantai Bandengan dan Pulau Panjang dalam mengakumulasi logam berat Pb (Timbal) termasuk dalam kategori rendah dengan nilai faktor biokonsentrasi rata-rata < 250.  ABSTRACT: Bandengan Beach and Panjang Island are one of a tourist destinations in Jepara. The activities of shipping are ones caused of heavy metal pollutions into the waters. Seagrass is flowering water plants and the ability to adapt to live and grow in the marine environment. Enhalus acoroides is a type of seagrass that grows around Bandengan Beach and Panjang Island. The presence of seagrass in the sea can be a bioindicator of heavy metal pollution  because to absorbs accumulate contaminants.. The pupose of this research ware to know and compare the content of heavy metals Pb (Lead) in Waters, Sediment, and roots, stems, leaf in Enhalus acoroides Seagrass in Bandengan Beach and Panjang Island. This research used descriptive method, while the method of determining the location used purposive sampling method. The material used in this research are the samples of Waters, Sediment, and roots, stems, leaf in Enhalus acoroides Seagrass. The research was carried out in Oktober-November 2019. The analysis of samplescarried out in the laboratory of analytical chemistry, Faculty of Math and Science, Gajah Mada University. The results showed the value of the accumulations of heavy metal Pb (Lead) from the root Enhalus acoroides  in Bandengan Beach ranging between 1,83 – 2,16 mg/l and 1,50 – 2,16 mg/l from the leaves, while the acvumulations of heavy metals Pb (Lead) from the root Enhalus acoroides in Panjang Island range between  1,66 – 2,82 mg/l and 1,33 – 2,98 mg/l from the leaves. The ability Enhalus acoroides in Bandengan Beach and Panjang Island to accumulate the heavy metals Pb (Lead) can be concluded under low category because of bioconcentrate factor value <250


2019 ◽  
Vol 8 (2) ◽  
pp. 141-148
Author(s):  
Betta Rianda ◽  
Ria Azizah Tri Nuraini ◽  
Sunaryo Sunaryo

Lamun jenis Enhalus acoroides merupakan salah satu komponen keanekaragaman hayati yang tumbuh di Perairan Kartini dan Teluk Awur. Aktivitas pariwisata, pelabuhan, pembuatan, pengecatan, pengelasan, pembersihan dan lalu lintas kapal nelayan menjadi penyebab terakumulasinya logam berat di perairan. Logam berat Pb merupakan logam berat beracun dan berbahaya, bahan pencemar dan cenderung mengganggu kelangsungan hidup organisme perairan. Tujuan penelitian ini ialah mengetahui dan menganalisis kandungan logam berat Pb pada air, sedimen dan lamun Enhalus acoroides (akar dan daun) di Perairan Kartini dan Teluk Awur, Jepara, serta mengetahui tingkat pecemarannya berdasarkan baku mutu. Penelitian ini menggunakan metode deskriptif, sedangkan metode penentuan lokasi menggunakan metode purposive sampling. Hasil penelitian menunjukkan kandungan logam berat Pb air di Perairan Kartini sebesar 0,181-0,316 mg/l dan Perairan Teluk Awur sebesar 0,001-0,157 mg/l. Kandungan logam berat Pb sedimen di Perairan Kartini sebesar 2,424-3,463 mg/kg dan Perairan Teluk Awur sebesar 2,347-2,496 mg/kg. Kandungan logam berat Pb Lamun Enhalus acoroides pada akar di Perairan Kartini sebesar 0,918–1,854 mg/kg dan Perairan Teluk Awur sebesar 0,906–1,492 mg/kg. Kandungan logam berat Pb Lamun Enhalus acoroides pada daun di Perairan Kartini sebesar 0,764–1,458 mg/kg dan Perairan Teluk Awur sebesar 0,674–1,040 mg/kg. Enhalus acoroides seagrass as a component of biodiversity that grows in the waters of Kartini and Teluk Awur. Activities in these waters include tourism, ports, manufacture, painting, welding, cleaning and traffic of fishing vessels to cause of accumulated heavy metals in the waters. Heavy metal Pb is a toxic and dangerous heavy metal, polluting material and tends to interfere with the survival of aquatic organisms. The purpose of this study was to determine and analyze the Pb heavy metal content in water, sediment and seagrass Enhalus acoroides (roots and leaves) in Kartini and Teluk Awur waters, Jepara, and to determine the level of pollution based on quality standards. This research uses descriptive method, while the location determination method uses purposive sampling method. The results showed that the heavy metal Pb water content in Kartini waters was 0.181 mg/l - 0.316 mg/l and Teluk Awur waters was 0.01-0.157 mg/l. The heavy metal content of Pb sediment in Kartini waters is 2,424-3,463 mg/kg and Teluk Awur waters was 2,347-2,496 mg/kg. The heavy metal content of Pb in Enhalus acoroides in the roots of Kartini waters was 0.918-1.854 mg/kg and Teluk Awur waters was 0.906-1.492 mg/kg. Heavy metal content of Pb in Enhalus acoroides in leaves in Kartini waters was 0.764 mg/kg - 1.458 mg/kg and Teluk Awur waters was 0.674-1.040 mg/kg


2021 ◽  
Vol 10 (3) ◽  
pp. 377-386
Author(s):  
Alvi Akhmad Arifin ◽  
Chrisna Adhi Suryono ◽  
Wilis Ari Setyati

Kerang hijau (Perna viridis) merupakan komoditas perikanan yang sering dikonsumsi sebagai bahan pangan. Sampel yang diambil berasal dari perairan Morosari Demak pada bulan Juni, Juli dan Agustus 2020. Tujuan dari penelitian ini untuk menduga kandungan logam berat Pb dan Cu yang terdapat pada air, sedimen dan kerang hijau serta menentukan batas toleransi untuk mengkonsumsi kerang hijau yang mengandung logam berat. Penelitian ini bertujuan juga untuk menentukan Faktor biokonsentrasi (BCF) yang merupakan nilai akumulasi bahan kimia (polutan) dalam tubuh kerang. Penelitian ini menggunakan metode deskriptif, sedangkan metode penentuan lokasi menggunakan metode purposive sampling. Materi yang digunakan dalam penelitian ini adalah sampel kerang hijau, air dan sedimen. Parameter lingkungan seperti suhu, salinitas, oksigen terlarut, kecerahan, pH diukur secara in situ. Hasil penelitian menunjukkan nilai kandungan logam berat dalam daging kerang hijau berkisar 0,140-0,617 mg/kg (Pb) dan 0,035-0,851 mg/kg (Cu). Kandungan Pb dan Cu pada kerang hijau di semua stasiun dan bulan pengambilan sampel masih berada di bawah ambang batas yang ditetapkan oleh Badan Standardisasi Nasional (2009) untuk logam berat Pb sebesar 1,5 mg/kg dan FAO (1972) untuk logam berat Cu sebesar 1 mg/kg. Kemampuan kerang hijau dalam mengakumulasi logam berat Pb dan Cu pada setiap bulan bervariasi, sebagian besar memiliki kemampuan akumulasi organisme rendah dengan nilai FBK < 1, sebagian memiliki kemampuan akumulasi organisme sedang dengan nilai FBK >1 dan ≤2 dan beberapa memiliki kemampuan akumulasi organisme tinggi dengan nlai FBK >2. Analisis batas aman konsumsi kerang hijau yang tercemar logam berat pada lokasi penilitian menunjukan kerang hijau masih aman dikonsumsi hingga 2,43 kg/minggu pada orang dewasa dengan berat badan rata-rata 60 kg Green mussels, Perna viridis is a fishery commodity that is often consumed as a food. The purpose of this study is to evaluate the concentration of pb and cu heavy metals contained in water, sediment and green mussels. The sample was collected in Morosari coastal waters Demak in June, July and August 2020 and determine the tolerance limit for consuming green mussels containing heavy metals. This research aims to determine the bioconcentration factor (BCF) which is the value of accumulation of chemicals (pollutants) in the body of shellfish. Samples of green mussels were taken from three stations which are ponds of green mussels belonging to Morosari fishermen. This study uses descriptive method, while location determination method using purposive sampling method. The materials used in this study were samples of green mussels, water and sediment. Environmental parameters such as temperature, salinity, dissolved oxygen, brightness, pH are measured in situ. The results showed the value of heavy metals in green shellfish ranging from 0.140-0.617 mg/kg (Pb) and 0.035-0.851 mg/kg (Cu). The content of Pb and Cu in green mussels in all stations and months of sampling is still below the threshold set by the National Standardization Body (2009) for pb heavy metals of 1.5 mg/kg and FAO (1972) for Cu heavy metals of 1 mg/kg. The ability of green shells in accumulating heavy metals Pb and Cu on a monthly vary, most have low organism accumulation ability with BCF value < 1, some have the ability to accumulate medium organisms with BCF values >1 and ≤2 and some have high organism accumulation ability with BCF >2. Analysis of the safe limit of consumption of green mussels contaminated with heavy metals at the research site showed green mussels were still safe to consume up to 2.43 kg/week in adults with an average body weight of 60 kg.


2018 ◽  
Vol 6 (4) ◽  
pp. 463-469
Author(s):  
Reyhan Fathullah Fauzi ◽  
Bambang Sulardiono ◽  
Niniek Widyorini

Fitoplankton mikroskopik adalah jasad renik yang melayang - layang di permukaan air. Fitoplankton merupakan tumbuhan yang banyak ditemukan di seluruh massa air pada zona eufotik, berukuran mikroskopis dan memiliki klorofil sehingga mampu membentuk zat organik dari zat anorganik melalui fotosintesis. Fitoplankton sebagai organisme autotrof menghasilkan oksigen yang akan  dimanfaatkan oleh organisme lain, sehingga fitoplankton mempunyai peranan penting dalam menunjang produktifitas perairan. Ketersedian fitoplankton suatu perairan dilihat berdasarkan kelimpahan dan klorofil ᾳ yang terjadi dalam perairan tersebut sangat ditentukan oleh keanekaragaman . Penelitian 1. Untuk mengetahui struktur komunitas fitoplankton,, klorofil α d perairan Sungai Tuntang, 2. Mengetahui indeks keanekaragaman, keseragaman dan dominasi fitoplankton di Sungai Tuntang. Penelitian dilaksanakan pada bulan Oktober 2015 di Sungai Tuntang Demak. Materi yang digunakan dalam penelitian adalah Fitoplankton dan Klorofil α . Metode yang digunakan adalah studi kasus, sedangkan pengambilannya Purposive Sampling Method. Sampling dilakukan dengan 3 kali pengulangan di 3 Stasiun lokasi sampling. Hasil penelitian didapatkan : 1. Jenis fitoplankton yang di temukan di Sungai Tuntang terdiri dari kelas  Cyanophyceae, kelas Diatome, kelas Desmidiacae, kelas Chlorophyceae, dan kelimpahan fitoplankton  yaitu  508 – 1261 ind/l, 2. Klorofil α berkisar antara 1,99 – 6,01 mg/m3, 3. Indeks keanekaragaman (H’) berkisar 1,72 – 2,20, indeks keseragaman (e) berkisar 0,53 – 0,69 dan indeks dominasi (c) berkisar 0,19 – 0,34.  Phytoplankton are floating microorganisms on the surface of the water. Phytoplankton is a plant that is frequently found throughout the mass of water in the euphotic zone, microscopic and has chlorophyll to be made of organic substances from inorganic substances through photosynthesis. Phytoplankton used as an autotrophic organism produces oxygen to be utilized by other organisms, so phytoplankton play an important role in supporting aquatic productivity. The existence of phytoplankton can be seen based on its abundance in waters, which is influenced by environmental parameters. This research is aimed to recognise the structure of phytoplankton community, chlorophyll existed in Tuntang waters, and to recognise the nutrient content (N, P) in Tuntang river waters. The research was conducted in October 2015 at Tuntang river,  Demak. The material used in this research is Phytoplankton and Chlorophyll α. The method used in this research is descriptive method and the sampling method is Purposive Sampling Method. Sampling is done by a repeating time that is 3 times repetition at the 3 stations of the sampling location. The results showed 4 genera with 24 species dominated by Diatome such as Nitzchia sp, Thalassiosira sp. The highest abundance of phytoplankton occurred at Station 1 during the 2nd repeat of 403 ind/L dominated by Nitzchia sp. The result of measurement of α-chlorophyll content obtained showed 0.28 - 0.62 mg/l. The highest chlorophyll-α values are at station I of 0.62 and the lowest is at station II of 0.28. This shows that α-chlorophyll around the river is at a low to moderate value.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Jesica O Patty ◽  
Ratna Siahaan ◽  
Pience V Maabuat

Abstrak Kualitas air sungai yang baik dibutuhkan oleh makhluk hidup untuk keberlanjutan kehidupannya. Kehadiran logam-logam berat di air dan sedimen dapat menurunkan kualitas air sungai. Penelitian ini bertujuan menganalisis kehadiran logam-logam berat timbal (Pb), kadmium (Cd), tembaga (Cu) dan seng (Zn) di air dan sedimen Sungai Lowatag. Penelitian ini menggunakan metode purposive sampling pada tiga stasiun yang tersebar dari hulu ke hilir. Pengambilan sampel sedimen dilakukan secara komposit di tiap stasiun. Sampel air diulang sebanyak tiga kali di tiap stasiun. Kehadiran logam berat-logam  berat  pada sedimen dengan konsentrasi berbeda-beda yaitu Cu berturut-turut dari Stasiun I, II dan III yaitu 13; 17 dan 13 mg/kg dan Zn yaitu 73; 48 dan 56 mg/kg. Kehadiran logam berat Pb di sedimen dari Stasiun I, II dan III yaitu 28; 19,1 dan 28,2 mg/kg masih di bawah Nilai Ambang Batas (NAB) menurut RNO/1981 sebesar 10 mg/kg – 70 mg/kg. Kehadiran logam berat Cd berturut-turut 3,83;  2,69 dan 4,03 mg/kg telah melampaui NAB menurut RNO/1981 (0,1 mg/kg – 2,0 mg/kg). Kehadiran logam-logam berat Pb, Cd, Cu, dan Zn di air masih di bawah NAB menurut PP No.82/2001. Kata-kata kunci: logam berat, kualitas air, sedimen, Sungai Lowatag, Sulawesi Utara AbstractThe qualified river water is required by organisms for their sustainability. The occurrence of heavy metals in surface water and sediments can degrade the quality of river water. The aim of this study was to analyze the occurrence of lead metals (Pb), cadmium (Cd), copper (Cu) and zinc (Zn) in water and sediment of Lowatag River. The purposive sampling method was applied to survey three stations from upstream to downstream. Sediment sampling was collected compositely at each station. Water samples were collected three times in each station. The occurrence of heavy metals in the surface sediments with different concentrations of Cu were 13; 17 and 13 mg /kg and Zn were 73; 48 and 56 mg/kg respectively from Station I, II and III. The occurrence of heavy metal Pb in the sediments of Stations I (28 mg/kg), II (19.1 mg/kg) and III (28.2 mg/kg) were below the Threshold Limit Value (TLV) according to Du Reseau National D’ Observation (RNO) year 1981 (10 mg/kg-70 mg/kg). The occurrence of heavy metal Cd in the sediments of Stations I (3.83 mg/kg), II (2.69 mg/kg) and III (4.03 mg/kg) were exceeded TLV according to RNO/1981 (0.1 mg/kg-2.0 mg/kg). The occurrence of heavy metals Pb, Cd, Cu, and Zn in water were still in the standard range of Indonesia Government Regulation No.82 year 2001.Key words: heavy metals, water quality, sediment, Lowatag River, North Sulawesi 


2018 ◽  
Vol 6 (3) ◽  
pp. 264-273
Author(s):  
M. Hafizulhaq ◽  
Haeruddin Haeruddin ◽  
Sri Sedjati

 ABSTRAK Sungai Plumbon mempunyai potensi tingkat pencemaran yang cukup tinggi, dikarenakan berbagai aktivitas di sekitar sungai seperti rumah tangga, industri, dan tambak. Penelitian ini bertujuan untuk mengetahui konsentrasi logam Pb dan Cd dalam sedimen, struktur komunitas makrozoobentos, hubungan antara konsentrasi logam dengan kelimpahan makrozoobentos dan mengetahui status pencemaran berdasarkan kurva ABC. Metode sampling yang digunakan yaitu purposive sampling pada 3 stasiun dengan 2 kali sampling. Penelitian ini dilaksanakan pada bulan Mei – Juli 2015 di Sungai Plumbon, Mangkang, Semarang, Jawa Tengah. Hasil pengukuran logam Pb stasiun I berkisar antara 6,55 – 6,89 mg/kg, stasiun II berkisar antara 3,92 – 7,34 mg/kg, dan stasiun III berkisar antara 4,77 – 5,85 mg/kg dan nilai konsentrasi logam Cd pada stasiun I berkisar antara 1,35 mg/kg, nilai Cd stasiun II berkisar antara 1,63 – 2,13 mg/kg, nilai Cd stasiun III berkisar antara 2,09 – 2,47 mg/kg. Hasil uji makrozoobentos menunjukkan hasil kelimpahan individu dengan pada stasiun I 258.04-774,12 ind/m3, stasiun II 129,02-903,14 ind/m3 dan stasiun III 129,02-903,14 ind/m3. Uji korelasi yang dilakukan antara logam Pb dengan kelimpahan individu menghasilkan korelasi positif lemah dan logam Cd dengan kelimpahan menghasilkan korelasi negatif kuat. Ditinjau dari kurva ABC maka sungai Plumbon masuk dalam kategori sungai tergolong tercemar ringan hingga berat. Kata kunci : Logam Berat (Pb dan Cd); Makrozoobentos; Sungai Plumbon ABSTRACT Plumbon river has high potential of pollution level, because various activities around the river like: homes, industry, and aquacultures. This research aimed to knows concentration of Pb and Cd in sediments, community structure of macrozoobenthos, relation between metals concentration and macrozoobenthos abundance. Beside to know state of pollution based on ABC curve. The sampling method used purposive sampling on 3 stations with 2 sampling times. This research was carried out in May – July 2015 in the river Plumbon, Mangkang, Semarang, Central Java. The results of measurements of heavy metals Pb on station I are 6.55-6.89 mg/kg, station II are 3.92-7.34 mg/kg, and station III are 4.77-5.85. The results of the measurement of metal Cd on station I are 1.63-2.13 mg/kg, station II are 1.63-2.13 mg/kg, and station III are 2.09-2.47 mg/kg. Test results showed the abundance of individuals on station I are 258.04-774,12 ind/m3, station II are 129,02-903,14 ind/m3 and station III are 129,02-903,14 ind/m3. Correlation test conducted between metal Pb with individual abundance show weak and positive correlation and metal Cd with individual abundance show strong and negative correlation. Based on ABC curve, Plumbon river is categorized as moderately to heavily polluted river. Keywords: Heavy Metal (Pb and Cd); Macrozoobenthos; Plumbon River


2018 ◽  
Vol 6 (4) ◽  
pp. 455-462
Author(s):  
Novananda Nadia ◽  
Siti Rudiyanti ◽  
Haeruddin Haeruddin

Sungai Cisadane memiliki fungsi penting bagi kehidupan manusia dan makhluk hidup lain disekitarnya. Berbagai jenis aktivitas manusia mulai dari pertanian, perikanan, pemukiman, pariwisata, perkebunan, transportasi hingga berbagai aktivitas industri terjadi di sepanjang Sungai Cisadane. Berbagai aktivitas tersebut menyebabkan penurunan kualitas air Sungai Cisadane setiap tahunnya. Tujuan dari penelitian ini adalah untuk mengetahui konsentrasi serta sebaran spasial logam berat Pb dan Cd pada kolom air dan sedimen di perairan muara Cisadane, Tangerang, Banten. Pengambilan sampel dilakukan sebanyak 1 kali yaitu pada tanggal 15 Januari 2017, sampel yang diambil berupa air dan sedimen, dan pengukuran parameter fisika kimia perairan. Pengambilan sampel dilakukan di 9 stasiun pengamatan yang ditentukan berdasarkan adanya aktivitas industri disekitar perairan tersebut. Metode yang digunakan adalah metode deskriptif dengan metode sampling menggunakan teknik purposive sampling. Pengukuran logam berat Pb dan Cd mengacu pada metode SNI dengan spektrofotometer AAS (Atomic Absorption Spectrophotometer). Hasil pengukuran konsentrasi logam berat Pb pada kolom air yaitu berkisar antara <0,001 hingga <0,01 mg/l dan konsentrasi logam berat Cd pada kolom air yaitu <0,002 mg/l. Sedangkan konsentrasi logam berat Pb pada sedimen berkisar antara <0,01 hingga 52,8040 mg/kg dan konsentrasi logam berat Cd pada sedimen yaitu <0,002 mg/kg. Apabila dilihat dari gambaran sebaran spasial logam berat Pb dan Cd di air dan sedimen, dapat disimpulkan bahwa logam berat Pb dan Cd di perairan muara Cisadane tersebar di seluruh stasiun penelitian, tetapi masih tergolong rendah konsentrasinya dan sebagian besar masih berada di bawah baku mutu yang telah ditetapkan.  The Cisadane River has an important function for human life and other living things around it. Various types of human activities from agriculture, fisheries, settlements, tourism, plantations, transportation to various industrial activities occur along the Cisadane River. These activities has caused the decrease in the water quality of the Cisadane River each year. The purpose of this research is to know the concentration and spatial distribution of heavy metals Pb and Cd on water column and sediment in the waters of Cisadane estuary, Tangerang, Banten. Sampling was conducted once on January 15, 2017, samples taken in the form of water and sediment, and measurement of water chemistry physics parameters. Sampling was conducted at 9 observation stations determined based on the existence of industrial activity around the waters. The method used is descriptive method of sampling method using purposive sampling technique. Measurements of heavy metals Pb and Cd referring to the ISO method with a spectrophotometer AAS (Atomic Absorption Spectrophotometer). The result of measurement of heavy metal concentration of Pb in the water column is between <0,001 to <0,01 mg/l and concentration of heavy metal Cd in water column that is <0,002 mg/l. While concentrations of Pb heavy metals in sediments ranged from <0.01 to 52.8040 mg/kg and concentrations of heavy metal Cd in sediments ie <0.002 mg/kg. When viewed from the description of the spatial distribution of heavy metals of Pb and Cd in water and sediment, it can be concluded that there are heavy metals of Pb and Cd in the waters of Cisadane estuary scattered throughout the research station, but still relatively low concentration and most are still below the standard which has been set.


Author(s):  
Arife Şimşek ◽  
Şule Sancak ◽  
Gülfem Bakan

Determining the potential bioavailability of heavy metals, evaluating according to adapted regulations is essential to efficiently conserve our coastal and estuarine waters. In this study, it is aimed to determine the industrial pollution and various other pollution sources that the Black Sea Basin is exposed to by using DGT (Diffusive Gradients in Thin Films) method and grab (manuel) sampling method in water and sediment and to evaluate the existing pollution according to quality standards. In Samsun, seasonal samples were collected from five different sampling stations, namely Akkiraz Stream, Hıdırellez Stream, Organized Industrial Zone (OIZ) Channel, Şabanoğlu Stream and Selyeri Stream, which are selected from Tekkeköy region where industry is intensively active. In order to determine the heavy metal content in both water and sediment samples, the DGT method was chosen for passive sampling and the grab sampling method was used for active sampling, and the efficiency of the methods was evaluated. According to the results of the study, the heavy metal concentration in grab sampling for water samples in descending order Al> Fe> Zn> Pb> Ni> Cu; In the samples taken with DGT, they are listed as Al> Fe> Zn> Cu> Ni> Pb. There were significant relationships between the total metal concentrations of sediment (Csed) and water (Csu) in grab sampling and metal concentrations sediment (Csed-DGT) and water (Csu-DGT) measured by DGT. It was found that the sensitivity and performance of sampling with DGT was 2-10 times higher compared to grab sampling. The high resolution in situ DGT technique for the assessment and management of the potential release risk of heavy metals at the water-sediment interface is a complementary method that contributes to the standard grab sampling method.


2017 ◽  
Vol 20 (1) ◽  
pp. 48 ◽  
Author(s):  
Ria Azizah Tri Nuraini ◽  
Hadi Endrawati ◽  
Ivan Riza Maulana

Metal pollution becomes a problem that is very threatening to marine ecosystems. This is because heavy metals difficult be destroyed and will accumulate in the water. This study aims to determine the content of chromium (Cr) in Water, Sediment and green mussels (Perna viridis) and know the maximum limit weekly consumption and the feasibility of the Green Shellfish consumption. Samples were taken in January 2016 for Trimulyo waters. Research using descriptive methods. Sampling was done by purposive sampling method. Heavy metal content analysis using AAS. MTI Value (Maximum Tolerable Intact) is calculated by the formula MWI / Ct to determine the value of the maximum limit of consumption of green mussels per week. The results showed the content of chromium (Cr) in water in Trimulyo waters of <0.003 mg / L, the content of chromium (Cr) in the sediments ranged from 20.49 to 45.78 mg / kg. The content of heavy metals Chromium (Cr) in Green Mussels ranged from <0.01 to 0.20 mg / kg. Maximum weight intake of green mussels are safe for consumption of water Trimulyo per week for women with an average body weight of 45 kg for metal Chromium (Cr) is 13.27 ± 4.78 kg per week. As for males with an average weight of 60 kg of 17.68 ± 6.37 kg per week. According to the Minister of Environment Decree 51 of 2004 Trimulyo water conditions have not categorized the heavy metal contaminated Chromium (Cr). The content of heavy metals chromium (Cr) in the sediments are well below the standards set by NOAA (National Oceanic and Atmospheric Administration) of 1999. As for the heavy metal content of chromium (Cr) in the Green Mussel showed that the clams in these waters has not been contaminated by heavy metals Chromium (Cr) according to the quality standard by the Food adulteration (metallic Contamination) Hong Kong in 1997. Keywords : Chromium (Cr), Water, Sediment, Perna viridis, Trimulyo Pencemaran logam menjadi suatu masalah yang sangat mengancam bagi ekosistem laut. Hal ini diduga karena logam berat susah hancur dan akan terakumulasi di perairan. Penelitian ini bertujuan untuk mengetahui kandungan Kromium (Cr) dalam Air, Sedimen dan Kerang Hijau (Perna viridis) serta mengetahui batas maksimum konsumsi mingguan dan tingkat kelayakan konsumsi Kerang Hijau. Sampel diambil pada Bulan Januari 2016 di perairan Trimulyo. Penelitian menggunakan metode deskriptif. Pengambilan sampel dilakukan secara Purposive Sampling Method. Analisis kandungan logam berat menggunakan AAS. Nilai MTI (Maximum Tolerable Intact) dihitung dengan rumus MWI/Ct untuk mengetahui nilai batas maksimum konsumsi Kerang Hijau per minggu. Hasil penelitian menunjukkan kandungan Kromium (Cr) dalam air di perairan Trimulyo sebesar <0,003 mg/L, kandungan Kromium (Cr) pada sedimen berkisar antara 20,49 – 45,78 mg/kg. Kandungan logam berat Kromium (Cr) pada Kerang Hijau berkisar antara <0,01 – 0,20 mg/kg. Berat Maksimal asupan Kerang Hijau yang aman dikonsumsi dari perairan Trimulyo per minggu untuk wanita dengan berat badan rata-rata 45 kg untuk logam Kromium (Cr) adalah 13,27±4,78 kg per minggu. Sedangkan untuk laki-laki dengan berat badan rata-rata 60 kg sebesar 17,68±6,37 kg per minggu. Menurut Keputusan Menteri Lingkungan Hidup No.51 Tahun 2004 kondisi perairan Trimulyo dikategorikan belum tercemar logam berat Kromium (Cr). Kandungan logam berat Kromium (Cr) pada sedimen berada di bawah baku mutu yang ditetapkan oleh NOAA (National Oceanic and Atmospheric Administration) Tahun 1999. Sedangkan untuk kandungan logam berat Kromium (Cr) pada Kerang Hijau menunjukkan bahwa kerang di perairan tersebut belum tercemar oleh logam berat Kromium (Cr) sesuai dengan baku mutu oleh Food Adulteration (Metalic Contamination) Hong Kong Tahun 1997. Kata kunci : Kromium (Cr), Air, Sedimen, Perna viridis, Trimulyo


2021 ◽  
Vol 10 (1) ◽  
pp. 64-71
Author(s):  
Aufa Rifqi Widiardja ◽  
Ria Azizah Tri Nuraini ◽  
Diah Permata Wijayanti

Nutrien memiliki peranan penting dalam pertumbuhan dan perkembangan biota laut dan merupakan hasil uraian dari bahan organik kompleks. Secara alamiah konsentrasi nutrien dalam perairan bervariasi dan dalam kondisi tertentu dapat terjadi keadaan di luar batas optimal bagi organisme. Penelitian ini bertujuan untuk mengetahui kandungan nutrien (Nitrat, Nitrit, Ammonium dan Phosphat) dan mengetahui tingkat kesuburan perairan Desa Bedono, Kecamatan Sayung, Kabupaten Demak sehingga dapat memberikan informasi dan acuan dalam memonitoring kandungan nutrient di perairan. Penelitian ini dilaksanakan pada bulan Januari 2020 di Perairan Desa Bedono, Kecamatan Sayung, Kabupaten Demak. Metode dalam penelitian ini adalah metode deskriptif sedangkan pemilihan lokasi pengambilan sampel menggunakan metode purposive sampling method. Pengambilan parameter lingkungan yang dibutuhkan dilakukan secara insitu dan sampel air di analisis di Laboratorium Teknik Lingkungan, Universitas Diponegoro. Pengambilan sampel dilakukan tiga kali pengulangan dengan menyimpan sampel air dengan botol sampel polyetilene yang dimasukan kedalam coolbox untuk menghindari masuknya sinar matahari. Hasil penelitian menunjukan nilai analisis kandungan nitrat pada perairan Desa Bedono, Kabupaten Demak berkisar antara 2,353 – 2,973 mg/L. Kandungan nitrit berkisar antara 0 – 0,01 mg/L, kandungan ammonium berkisar antara 14,815 – 18,239 mg/L, sedangkan kandungan phospat berkisar antara 0,04767 – 0,05133 mg/L. Berdasarkan kandungan nutrient Nitrat dan Phosphat kesuburan perairan berada dalam klasifikasi mesotrofik.Nutrient had an important role in growth and development of organism and are result of the decomposition from complex organic materials. Naturally, the concentration of nutrients in the water varies and under certain conditions it can occur outside the optimal limits that was declared safe for organism. This research aims to determine the level of water fertility based on the content of nitrate, nitrite, ammonium and phosphate in the Coastal Waters Of Bedono Village, Sayung District, Regency of Demak. This research was conducted on January 2020 in the Coastal Waters Of Bedono Village, Sayung District, Regency of Demak. The method used in this research is descriptive method while the selection of sampling location used the purposive sampling method. Taking the required environmental parameters conducted in situ and sample analysis conducted at Laboratorium Teknik Lingkungan, Universitas Diponegoro. Sampling is done by storing water samples with polyetilene bottles to avoid the entry of sunlight in three repetitions. The result of this research shows that the average  range value of Nitrate content analysis at location is 2,353 – 2,973 mg/L. The average range value of nitrite content 0 – 0,01 mg/L, for the average range value of ammonium content is 14,815 - 18,239 mg / L, while the phosphate content ranged from 0.4767 - 0.05133 mg / L. Based on the nutrient content of nitrate and phosphate fertility waters at the level mesotrophic.


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