KORELASI KONSENTRASI LOGAM Pb DAN Cd   DENGAN STRUKTUR KOMUNITAS MAKROZOOBENTOS DI SUNGAI PLUMBON, MANGKANG, SEMARANG, JAWA TENGAH

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

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The Analysis of Content of Heavy Metals Cadmium (cd) in the Flow of the River Barumun Labuhanbatu Selatan

Budapest International Research and Critics Institute (BIRCI-Journal) Humanities and Social Sciences ◽

10.33258/birci.v4i1.1742 ◽

2021 ◽

Vol 4 (1) ◽

pp. 1242-1247

Author(s):

Sri Kedaton ◽

Arman Harahap

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Sampling Method ◽

Heavy Metal Concentration ◽

Quality Standard ◽

Test Results ◽

Community Activities ◽

Test Sediment ◽

Heavy Metal Cd

The number of community activities in the area of River Barumun Labuhanbatu South will produce heavy metals in the waters and will accumulate to the bottom of the waters in the sediment. This study discusses the content of heavy metal Cd in sungai Barumun Labuhanbatu Selatan. The research was conducted in December 2020 until January 2021 in the region of the waters of the River Barumun Labuhanbatu Selatan. The process of sampling using purposive sampling method. Data analysis was done descriptively by looking at the results of the measurements of some parameters of the waters and the test results of water samples in the laboratory by comparing the quality standard according to the Decision of the Minister of Environment No. 51 Year 2004. As for the test sediment samples in the laboratory compared with the raw quality of the concentration of heavy metals in the sediment IADC/CEDA 1997. The results of the heavy metal concentration of Cd in the surface water ranged 0,003-0,068 mg/l, the concentration of heavy metal cadmium in water depth of 5 meters has a range of 0.007-to 0.058 mg/l.

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Analisis Kandungan Logam Berat Kromium (Cr) Pada Air, Sedimen Dan Kerang Hijau (Perna viridis) Di Perairan Trimulyo Semarang

Jurnal Kelautan Tropis ◽

10.14710/jkt.v20i1.1104 ◽

2017 ◽

Vol 20 (1) ◽

pp. 48 ◽

Cited By ~ 1

Author(s):

Ria Azizah Tri Nuraini ◽

Hadi Endrawati ◽

Ivan Riza Maulana

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Hong Kong ◽

Metal Content ◽

Sampling Method ◽

Heavy Metal Content ◽

Perna Viridis ◽

Food Adulteration ◽

Purposive Sampling ◽

Maximum Limit

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

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Analisis Timbal pada Air, Sedimen dan Enhalus Acoroides, Royle 1839 (Angiosperms: Hydrocharitaceae) di Perairan Jepara

Journal of Marine Research ◽

10.14710/jmr.v9i3.27477 ◽

2020 ◽

Vol 9 (3) ◽

pp. 230-236

Author(s):

Zhulian Hikmah Hasibuan ◽

Bambang Yulianto ◽

Ria Azizah Tri Nuraini

Keyword(s):

Analytical Chemistry ◽

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Sampling Method ◽

Purposive Sampling ◽

Tourist Destinations ◽

Enhalus Acoroides ◽

Water Plants ◽

Descriptive Method

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

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Kandungan Logam Berat Seng pada Enhalus acoroides di Perairan Jepara

BULETIN OSEANOGRAFI MARINA ◽

10.14710/buloma.v8i1.21378 ◽

2019 ◽

Vol 8 (1) ◽

pp. 9

Author(s):

Bagus Apriana Putra ◽

Adi Santoso ◽

Ita Riniatsih

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Sampling Method ◽

Environmental Parameters ◽

Purposive Sampling ◽

Enhalus Acoroides ◽

Water And Sediment ◽

Water Plant ◽

Descriptive Method

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.

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Struktur Komunitas Fitoplankton di Kolam Bekas Pertambangan Batubara Desa Kampung Baru Kecamatan Cempaka

BIOSCIENTIAE ◽

10.20527/b.v17i2.3451 ◽

2021 ◽

Vol 17 (2) ◽

pp. 37

Author(s):

Sukoco Sukoco ◽

Gunawan Gunawan ◽

Muhamat Muhamat

Keyword(s):

Community Structure ◽

Coal Mining ◽

Sampling Method ◽

Diversity Index ◽

Pool Analysis ◽

Fertility Rate ◽

The State ◽

Purposive Sampling ◽

Phytoplankton Communities ◽

Average Abundance

This study aims to determine the structure of phytoplankton communities in the pool are former coal mining Desa Kampung Baru Kecamatan Cempaka which include abundance, diversity, uniformity and dominance. Phytoplankton samples taken in two pools with a purposive sampling method with a three-point shooting at each pond. Sampling was performed three times. Phylum of phytoplankton were identified in both pools as much as 2 phylum (Chloropyta and Chrysopita) with 17 genera. Average abundance of phytoplankton in the first pool of 7174 ind / liter and 6873 ind / liter in the second pool. The average diversity index of phytoplankton in the first pool of 1.540 and 1.621 in the second pool. Average uniformity index of phytoplankton in the first pool of 0622 and 0.623 in the second pool. The average index of phytoplankton dominance in the first pool of 0271 and 0250 in the second pool. Analysis of community structure (abundance, diversity, uniformity and dominance) shows the condition of the two ponds in the state is quite stable and capable of supporting life inside the phytoplankton. Where the pool in the fertility rate is the level of contamination is, the conditions included in the category of individuals spread more evenly and there are no species that dominate other species in the extreme.

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Kandungan Logam Berat Besi (Fe) Pada Air, Sedimen, Dan Kerang Hijau (Perna viridis) Di Perairan Tanjung Emas Semarang

Jurnal Kelautan Tropis ◽

10.14710/jkt.v18i1.512 ◽

2015 ◽

Vol 18 (1) ◽

Author(s):

Endang Supriyantini ◽

Hadi Endrawati

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Flow Velocity ◽

Atomic Absorption ◽

Key Words ◽

Atomic Absorption Spectrophotometry ◽

Pollution Level ◽

Perna Viridis ◽

Absorption Spectrophotometry ◽

Living Organisms

Logam berat Fe merupakan logam berat essensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah yang berlebih dapat menimbulkan efek racun.Penelitian ini bertujuan untuk menganalisis kandungan dan tingkat pencemaran logam berat Fe pada air, sedimen, dan kerang hijau (Perna viridis) di perairan Tanjung Emas Semarang. Penelitian ini dilaksanakan pada tanggal 7 November dan 7 Desember 2013 dengan metode penelitian deskriptif. Logam berat Fe dalam sampel air, sedimen dan kerang hijau dianalisis di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BTPPI) Semarang dengan menggunakan metode AAS (AtomicAbsorption Spectrophotometry). Hasil penelitian menunjukkan bahwa perairan Tanjung Emas masih dalam taraf terkontaminasi logam Fe. Sedangkan pada sedimen dan pada kerang hijau (Perna viridis) sudah terindikasi tercemar logam Fe.Meskipun demikian variasi faktor lingkungan seperti suhu, salinitas, pH, kecepatan arus dan jenis sedimen juga memberikan kontribusi yang cukup penting terhadap kandungan logam Fe.Kata Kunci: logam Fe, Air, Sedimen, Perna viridis, metode AAS Heavy metalsiron(Fe) is anessentialheavy metalswhose presencein a certain amountis neededby living organisms, but inexcessiveamountscan causetoxic effects.The aims of the research is to analyze the heavy metals coccentration and the pollution level of Fe in water, sediment, and green mussels (Perna viridis) at Tanjung Emas Semarang. This research was conducted from 7 November and 7 December 2013 using the Atomic Absorption Spectrophotometry (AAS) and research methodswithdescriptive. The results showed that the waters of the Tanjung Emas is still in the stage of heavy metals contaminated iron (Fe). Sediment and green mussels (Perna viridis)already indicated heavy metal contaminatediron. However, variations inenvironmental factorssuch astemperature, salinity, pH, flow velocity an dsediment types also providean important contributionto heavy metal contentof iron(Fe).Key Words: Fe, water, sediment, Perna viridis, metode AAS

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COMPETITIVENESS, MARKETING ACCESS, AND NETWORK CAPABILITY AND ITS IMPACTS ON MARKETING PERFORMANCE

Jurnal Dinamika Manajemen ◽

10.15294/jdm.v7i2.8203 ◽

2016 ◽

Vol 7 (2) ◽

Author(s):

Teguh Iman Sayekti ◽

Euis Soliha

Keyword(s):

Regression Analysis ◽

Computer Program ◽

Sampling Method ◽

Total Population ◽

Sample Collection ◽

Purposive Sampling ◽

Marketing Performance ◽

Central Java ◽

Network Capability

<p><em>This study is to determine what factors influencingthe performance of SMEs. The population in this study is SMEs in the Central Java. Sample collection was conducted with a purposive sampling method. Criteriaused to take into accountis the SMEs that are already running at leastfortwo years. The sample in this study is intended as the representative of total population,67 (sixty seven). The data were processed and analyzed by computer program of SPSS 20 for Windows. Based on the results of regression analysis, it can be concluded that competitiveness has positive and significant impact on marketing performance marketing access has positive and significant impact on marketing performance. It means that the higher competitiveness and marketing access, the higher its performance. Competitiveness and marketing access have influence on SMEs’ performance through network capability. </em></p>

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Seasonal Levels, Sources, and Health Risks of Heavy Metals in Atmospheric PM2.5 from Four Functional Areas of Nanjing City, Eastern China

Atmosphere ◽

10.3390/atmos10070419 ◽

2019 ◽

Vol 10 (7) ◽

pp. 419 ◽

Cited By ~ 8

Author(s):

Lichun Wu ◽

Xiao-San Luo ◽

Hongbo Li ◽

Long Cang ◽

Jie Yang ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Health Risks ◽

Metal Pollution ◽

Industrial Area ◽

Pollution Level ◽

Suburban Areas ◽

Nanjing City ◽

Functional Areas ◽

Atmospheric Pm2.5

Aerosol pollution is a serious environmental issue, especially in China where there has been rapid urbanization. To identify the intra-annual and regional distributions of health risks and potential sources of heavy metals in atmospheric particles with an aerodynamic diameter less than or equal to 2.5 μm (PM2.5), this work collected monthly PM2.5 samples from urban, industrial, suburban, and rural areas in Nanjing city during 2016 and analyzed the heavy metal compositions (Cu, Pb, Cd, Co, V, Sr, Mn, Ti, and Sb). Enrichment factors (EFs) and principal component analysis (PCA) were applied to investigate the sources. The atmospheric PM2.5 pollution level was highest in the industrial area, followed by the urban and suburban areas, and was the lowest in the rural area. Seasonally, the concentrations of PM2.5 and associated heavy metals in spring and winter were higher than those in summer and autumn. Besides natural sources, heavy metal pollution in PM2.5 might come from metallurgical dust in the industrial area, while it mainly comes from automobile exhaust in urban and suburban areas. Health risk assessments revealed that noncancerous hazards of heavy metals in PM2.5 were low, while the lifetime cancer risks obviously exceeded the threshold. The airborne metal pollution in various functional areas of the city impacted human health differently.

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Heavy Metal Residues in Soil and Accumulation in Maize at Long-Term Wastewater Irrigation Area in Tongliao, China

Journal of Chemistry ◽

10.1155/2015/628280 ◽

2015 ◽

Vol 2015 ◽

pp. 1-9 ◽

Cited By ~ 13

Author(s):

Yintao Lu ◽

Hong Yao ◽

Dan Shan ◽

Yichen Jiang ◽

Shichao Zhang ◽

...

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Growth Cycle ◽

Wastewater Irrigation ◽

Pollution Level ◽

Irrigated Area ◽

Metal Contents ◽

Maize Roots ◽

Translocation Factors

Soil and plant samples were collected from Tongliao, China, during the maize growth cycle between May and October 2010. Heavy metals, such as Cr, Pb, Ni, and Zn, were analyzed. The concentrations of Cr, Pb, Ni, and Zn in the wastewater-irrigated area were higher than those in the topsoil from the groundwater-irrigated area. The concentrations of metals in the maize increased as follows: Pb < Ni < Zn < Cr. In addition, Cr, Pb, and Ni mainly accumulated in the maize roots, and Zn mainly accumulated in the maize fruit. The results of translocation factors (TF) and bioconcentration factors (BCF) of maize for heavy metals revealed that maize is an excluder plant and a potential accumulator plant and can serve as an ideal slope remediation plant. In addition, the increasing heavy metal contents in soils that have been polluted by wastewater irrigation must result in the accumulation of Cr, Pb, Ni, and Zn in maize. Thus, the pollution level can be decreased by harvesting and disposing of and recovering the plant material.

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Status of soil heavy metals contamination using contamination indices in shallot fields

E3S Web of Conferences ◽

10.1051/e3sconf/202130604013 ◽

2021 ◽

Vol 306 ◽

pp. 04013

Author(s):

Triyani Dewi ◽

Edhi Martono ◽

Eko Hanudin ◽

Rika Harini

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Heavy Metal Contamination ◽

Contamination Factor ◽

Soil Samples ◽

Limit Values ◽

Central Java ◽

Contamination Indices ◽

Heavy Metals Contamination ◽

The Status

Monitoring and assessment of heavy metal concentrations in shallot fields are needed to evaluate the potential risk of contamination due to heavy metals. This study aims to define the status of heavy metal contamination in shallot fields using contamination indices. A total of 184 soil samples (0-20 cm) were taken from shallot fields in Brebes Regency, Central Java. The soil samples were analyzed for the concentration of five heavy metals (Cd, Pb, Ni, Cr, and Co) with HNO3 and HClO4 extracts and measured using AAS. Assessment of the status of heavy metals contamination in the soil using contaminant factor (CF), geo-accumulation index (I-geo), and pollution load index (PLI). The mean concentration in shallot fields showed the following order Cr > Ni > Pb > Co > Cd and the concentration were still below critical limit values. Four metals are Pb, Cr, Co, and Ni are low contamination (CF<1), while Cd is considerable until very high contamination factor. Based on I-geo values, shallot fields are practically uncontaminated of Pb, Co, Ni, and Cr (I-geo<1), meanwhile the status of Cd is uncontaminated to moderately contaminated (0<I-geo<1). Generally, the shallot fields in Brebes Regency, Central Java is unpolluted with five metals (PLI<1).

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