scholarly journals IDENTIFIKASI LOGAM BERAT Hg, Pb DAN Cd DI ALIRAN SUNGAI BATANG KUANTAN, KABUPATEN KUANTAN SINGINGI

2021 ◽  
Vol 3 (1) ◽  
pp. 1-3
Author(s):  
Asregi Asril ◽  
Rosa Murwindra ◽  
Jumriana Rahayu Ningsih
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Government Regulation ◽  
River Flow ◽  
Water Quality Management ◽  
Field Research ◽  
Quality Standard ◽  
Laboratory Methods ◽  
Concentration Threshold ◽  
Ph Level

The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Regency has been carried out successfully. Heavy metals are measured not only from their heavy metal content such as Hg, Pb and Cd but also from the pH level of the river flow itself. The research location is at the Batang Kuantan River, which is measured from 3 points. Changes in Data Observed / Measured are the quality levels of heavy metals in the waters. The research model used includes field research using survey and laboratory methods. The research design was analyzed using the Atomic Absorption Spectometer (AAS). The water sample was given HNO3 until it was acidic and filtered so that there was no sedimentation, then analyzed by AAS. Heavy metal analysis result data technique is compared with quality standard of government regulation no 82 of 2001 regarding water pollution control and water quality management. Pb did not have a problem because the levels were not found. Whereas for Cu and Cd in the category of concentration threshold for reasonableness, which ranged from 0.158-0.1598 ppm and 0.0233-0.2769 ppm.

scholarly journals ANALISA TINGKAT PENCEMARAN LOGAM BERAT TIMBAL (Pb) DI DAERAH ALIRAN SUNGAI DELI SUMATERA UTARA

2019 ◽  
Vol 6 (2) ◽  
pp. 153-161
Author(s):  
Suratni Afrianti ◽  
Julaili Irni
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Pollution Control ◽  
Government Regulation ◽  
Water Quality Management ◽  
River Pollution ◽  
Pollution Level ◽  
Lead Pollution ◽  
Average Value ◽  
North Sumatra

The Deli river is the Pioritas I River Basin in North Sumatra, the level of community activity in the Deli river border is high such as settlements, offices, schools and industries, the community has the potential to produce a lot of solid waste in the estuary to the river body so as to make the river polluted, parameters pollution is heavy metal. The purpose of this study is to analyze the Pb content in the Deli River using the AAS tool, from the analysis of the deli river pollution level, the Lead Analysis Result (Pb) obtained from upstream to downstream is an average value of 0.003 ppm, this means that lead pollution (Pb) in the river Deli is still relatively low or has not been polluted by lead heavy metals (Pb) because according to Government Regulation No. 82 of 2001 concerning Water Quality Management and quality pollution control of 0.03 ppm standard water.

scholarly journals Analisis Kandungan Logam Berat Pada Ikan Kakap Putih (Lates calcarifer Bloch) di Perairan Mimika Papua

2019 ◽  
Vol 17 (2) ◽  
pp. 256
Author(s):  
Rosye H.R. Tanjung ◽  
Suwito Suwito ◽  
Vita Purnamasari ◽  
Suharno Suharno
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Heavy Metal Contamination ◽  
Sea Water ◽  
Good Condition ◽  
Quality Standard ◽  
Heavy Metal Content ◽  
Lates Calcarifer ◽  
Tailings Sand

Kebutuhan bahan pangan sangat tergantung pada ketersediaanya di lingungan. Bahan pangan yang diperlukan untuk memenuhi kebutuhan sehari-hari harus sehat dan bebas dari bahan pencemar, termasuk logam berat. Ikan kakap putih (Lates calcarifer) sering dijumpai pada kawasan muara sungai di hampir seluruh wilayah Indonesia, bahkan di Papua. Tujuan penelitian ini adalah untuk mengkaji kandungan logam berat Pb, Cd, Cu, Fe, As, dan Hg pada ikan kakap putih (L. calcarifer) yang hidup di perairan estuari Mimika Papua. Perairan estuari di Mimika diketahui sebagai salah satu daerah pengendapan pasir sisa tambang (tailing). Metode yang digunakan adalah survei dan analisis laboratorium kandungan logam berat pada tubuh ikan. Analisis Pb, Cd, Cu, Fe, As, dan Hg ditentukan dengan spektroskopi serapan atom (AAS, Atomic Absorpsion Spectroscopy). Penentuan tingkat pencemaran logam berat dilakukan dengan Metode Standar APHA 3113 Cetac Technologies SPR IDA. Analisis data dilakukan dengan membandingkan kandungan logam berat dalam air dengan baku mutu air laut menurut SK MNLH No. 51 tahun 2004. Untuk kandungan logam berat pada organ tubuh ikan dibandingkan dengan kandungan maksimum logam berat berdasarkan SNI 7387: 2009 tentang batas maksimum cemaran logam berat bahan pangan. Kandungan logam berat pada ikan kakap putih masih tergolong aman dikonsumsi karena mengandung logam berat di bawah ambang batas baku mutu. Kondisi ini didukung oleh hasil analisis logam berat pada air yang menunjukkan masih dalam kondisi baik.   Kata kunci: L. calcarifer, logam berat, Sungai Kamora, Sungai Ajkwa, Mimika.   The need for food depends on the availability in the environment. Foods needed to meet daily needs should be healthy and free of pollutants, including heavy metals. White snapper (Lates calcarifer) is often found in the estuary of the river in almost all parts of Indonesia, even in Papua. The purpose of this research is to study the heavy metal content of Pb, Cd, Cu, Fe, As, and Hg on white snapper (L. calcarifer) which live in Mimika Papua estuary waters. The estuary waters of Mimika are known as one of the deposition areas of tailings sand. The method used is survey and laboratory analysis of heavy metal content in fish body. Analysis of Pb, Cd, Cu, Fe, and Hg was determined by Atomic Absorption Spectroscopy (AAS). Determination of the level of heavy metal contamination was done by Standard Method of APHA 3113 Cetac Technologies SPR IDA. Data analysis was done by comparing the heavy metal content in water with sea water quality standard according to SK MNLH No. 51 year 2004. For heavy metal content in fish body organs compared with maximum content of heavy metals based on SNI 7387: 2009 on the maximum limit of heavy metal food contamination. The content of heavy metals in white snapper is still considered safe for consumption because its below the quality standard threshold. This condition is supported by the results of heavy metal analysis on the water which shows still in good condition. Key words: L. calcarifer, heavy metal, Kamora River, Ajkwa River, Mimika.

scholarly journals Kuantitas kandungan logam berat dan minyak solar di estuaria Krueng Cangkoi, Meulaboh, Kabupaten Aceh Barat

2017 ◽  
Vol 4 (2) ◽  
pp. 83
Author(s):  
Edwarsyah Edwarsyah
Keyword(s):  
Heavy Metals ◽  
Diesel Fuel ◽  
Government Regulation ◽  
Pollution Index ◽  
Research Process ◽  
Quality Standard ◽  
Atomic Absorption Spectrophotometry ◽  
Laboratory Research ◽  
Purposive Sampling ◽  
Banda Aceh

Penelitian ini bertujuan untuk menganalisis kuantitas kandungan logam berat jenis timbal (Pb), kadmium (Cd), besi (Fe), merkuri (Hg), dan minyak solar di estuaria Krueng Cangkoi. Pengambilan sampel dilakukan di Krueng Cangkoi, Desa Padang Seurahet, Kecamatan Meureubo, Meulaboh, Aceh Barat. Analisa data dan proses penelitian dilaksanakan di Laboratorium Badan Riset dan Standardisasi Industri Daerah (BARISTAND) Kota Banda Aceh pada bulan Desember 2014 sampai dengan Januari 2015. Penelitian menggunakan metode purposive sampling dan data diperoleh berdasarkan uji Spektrofotometri Serapan Atom terhadap kandungan logam berat jenis Pb, Cd, Fe, Hg, dan minyak solar di 5 (lima) titik sampel. Di dapatkan hasil tingkat kandungan logam berat Cd (0,14 mg/L) dan Fe (0,56 mg/L) di Krueng Cangkoi telah melampaui ambang batas baku mutu berdasarkan Peraturan Pemerintah No: 82/2001 yaitu 0,01 mg/L pada Cd dan 0,3 mg/L pada Fe. Hasil indeks pencemaran di Krueng Cangkoi didapatkan nilai indeks pencemaran Fe yaitu 1,76 mg/L tergolong cemar ringan dan nilai indeks pencemaran Cd yaitu 3,91 mg/L tergolong cemar sedang berdasarkan baku mutu KeMenLH No: 115/2003.The objective of research to analyzed quantity of heavy metals types of: lead (Pb), cadmium (Cd), iron (Fe), mercury (Hg) and diesel fuel in estuaries of Krueng Cangkoi. Sampling was conducted on December 2014 until January 2015 in estuaries Krueng Cangkoi, Meulaboh, West Aceh. The data analyzed and research process at the Laboratory Research and Standardization Industry (BARISTAND) Banda Aceh. The research used purposive sampling method and the data was obtained by Atomic Absorption Spectrophotometry method test for heavy metal content types of: Pb, Cd, Fe, Hg and diesel fuel at 5 (five) sites sampling. The results of level of heavy metals Cd (0,14 mg/L) and Fe (0,56 mg/L) in Krueng Cangkoi has exceeded the quality standard threshold base on Government Regulation No: 82/2001 was 0,01 mg/L in Cd and 0,3 mg/L in Fe. The results of pollution index in Krueng Cangkoi obtained pollution index values of Fe was 1,76 mg/L classified of lightly-polluted and pollution index values of Cd was 3,91 mg/L classified of moderately-polluted based on quality standard of KemenLH No: 115/2003.

KANDUNGAN LOGAM BERAT TIMBAL (PB) DAN KADMIUM (CD) PADA SEDIMEN DI PERAIRAN SUNGAI PAKIL KABUPATEN BANGKA

2018 ◽  
Vol 12 (2) ◽  
pp. 84-92
Author(s):  
Fauzia Miranda ◽  
Kurniawan Kurniawan ◽  
Sudirman Adibrata
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Environmental Protection Agency ◽  
Metal Content ◽  
Quality Standard ◽  
Research Field ◽  
Heavy Metal Content ◽  
Sediment Texture ◽  
Positive Correlation ◽  
R Value

This study aimed to analyze the content of Pb and Cd in sediments in the river Pakil, Bangka, analyze the content of TOC and texture characteristics of sediments and fine sediment menganallisis relationship with heavy metals, as well as analyze the relationship between TOC with heavy metals. The experiment was conducted in April in Pakil River. Sampling in this research field as muchthree stations and three repetitions. Results of measurement of heavy metals in sediment Pb with an average range of 3.96 to 12.26 mg / kg. The measurement results Cd heavy metal content in the sediment with average range <.0004 to 0.53 mg / kg. Pb heavy metal content in the above mentioned stations have not passed the quality standard limits, for heavy metals Cd (Station 1) has passed the quality standard threshold based on the quality standards according to the Swedish Environmental Protection Agency (SEPA, 2000).The results of the correlation between heavy metals Pb with Sediment Texture positive correlation with R ² value of 0.5021, the correlation between the heavy metals Cd in Sediment Texture positive correlation with R² value of 0.7154. Correlation between heavy metals Pb with TOC in sediments positive correlation with R ² value of 0.9764, the correlation between heavy metals Pb with TOC in sediments positive correlation with R² value of 0.9956.

scholarly journals Heavy metal content in the green fodder of field pea/oat mixtures destined for cattle feed

2019 ◽  
Vol 191 (11) ◽  
Author(s):  
Anna Płaza ◽  
Barbara Gąsiorowska ◽  
Emilia Rzążewska
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Field Research ◽  
Heavy Metal Content ◽  
Field Pea ◽  
Harvest Date ◽  
Pure Stand ◽  
Green Fodder ◽  
Cadmium And Lead

Abstract The objective of the study was to establish the effect of component share in mixtures and harvest date on concentrations of selected heavy metals in the green fodder of field pea, oat, and their mixtures. The research hypothesis assumed that the cultivation of peas and oats in pure sowing, and in mixtures will also allow to choose combinations from which the forage will have the lowest content of heavy metals. Field research was conducted at the Zawady Experimental Farm (52° 03′ 39″ N, 22° 33′ 80″ E) which belongs to Siedlce University of Natural Sciences and Humanities. Two factors were tested in the study: I—component share in the mixture: field pea—pure stand 100%, oat—pure stand 100%, field pea 75% + oat 25%, field pea 50% + oat 50%, field pea 25% + oat 75%; II—harvest date: field pea flowering stage, field pea flat pod stage. Plant material was sampled to determine the following elements: Cu, Zn, Cd, Pb, Cr, and Ni. The results of the study demonstrated that field pea grown in pure stand had the highest copper and zinc contents, and the lowest chromium and nickel contents. Field pea mixed with oat significantly reduced heavy metal content in green fodder. Cadmium and lead contents in the green fodder of field pea/oat mixtures were too low to be determined by means of the spectrometer Perkin Elmer Optima 8300. Regular checks of heavy metal contents are recommended in spite of their low amounts in the green fodder of field pea/oat mixtures.

Evaluation of Heavy Metal Contamination in Limestone Soil from Suzhou Area, Anhui Province, China

2012 ◽  
Vol 549 ◽  
pp. 949-952
Author(s):  
Song Chen
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Geoaccumulation Index ◽  
Quality Standard ◽  
Standard Level ◽  
Metal Element ◽  
Heavy Metal Element ◽  
Heavy Metals Pollution ◽  
Limestone Soil

The heavy metal elements analysis had been carried out for the limestone soils collected from Suzhou area, the degree of heavy metals pollution were evaluated by such methods as enrichment factor and geoaccumulation index, and the correlation and principal analysis of the testing results were studied based on SPSS. The results showed that the heavy metals of the samples can be subdivided into tow type: the Pb、Zn and Cr are below the first quality standard level, the Cu and As are between the first and second level of quality standard, the heavy metal element pollution degree were as follows: Cu>As>Cr>Zn>Pb>V. The V and Zr are controlled by the contamination of the detrital; the Pb, Sr and As are controlled by the source rock (limestone); the third factor contain the Zn, Cu and Al, which showed the effect by agriculture.

scholarly journals ANALISIS KANDUNGAN MERKURI (Hg) PADA AIR DAN DAGING IKAN PATIN SIAM (Pangasius hypopthalmus) Di KJA DANAU SIPIN JAMBI

2017 ◽  
Vol 2 (1) ◽  
pp. 9
Author(s):  
Syahrizal Syahrizal ◽  
M Yusuf Arifin
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Heavy Metal ◽  
Eichhornia Crassipes ◽  
Fish Farming ◽  
Threshold Value ◽  
Quality Standard ◽  
Survey Study ◽  
Predatory Fish ◽  
Purposive Sampling

AbstractEnvironment Agency Jambi Province in 2014 stipulates that the Batanghari River uncategorised heavy pollution with the effluent of 0.3265 ppm. The river water flow into the Lake Sipin, so worried farmers catfish (Pangasius hypopthalmus) in the floating  nets cage on heavy metal pollution Hg when exceeding quality standards. The content of Hg was observed through the method of survey study purposive sampling with 4 stations for 3 weeks of observation with sample analysis Atomic Absorption Spectrophotometer. The observation that the accumulation of heavy metals mercury (Hg) meat catfish in the lake Sipin from 0.0930 to 0.3960 ppm. Hg content is in torelansi SNI standards for heavy metals Hg categories food fishery products including mollusks and shrimp is 1 ppm and 0.5 ppm for predatory fish. So fish farming Lake Sipin still safe for consumption humans..Hg value of water is observed from 0.0001 to 0.0009 ppm. Hg content was lower when compared to the water quality standard by the Ministry of Environment No. 51 In 2004 the threshold value for the biota is 0.001 mg / l (ppm). Then the category of heavy metal content of Hg in the waters of Lake Sipin still at the threshold of normal. Occurrence repaired Hg waters presumably because the number found fish brooms, Hypostomus plecostomus and plant water hyacinth, Eichhornia crassipes which absorbed Hg in the waters. The state of water quality when the observation temperatures averaging 30-32 ° C, pH 6.6 to 7.4 and DO 7.0 to 8.4 ppm. The range of this parameter is feasible for the cultivation of catfish (Pangasius Hyphopthalmus), as it supports the growth and survival.Keywords: Bioaccumulation Hg, Lake Sipin, catfish AbstrakBadan Lingkungan Hidup Provinsi Jambi pada tahun 2014 menetapkan bahwa Sungai Batanghari  dikategorikan tercemari berat dengan limbah 0,3265 ppm. Air sungai ini mengalir ke Danau Sipin, sehingga para petani ikan patin (Pangasius hypopthalmus) di KJA kawatir terjadi pencemaran logam berat Hg melebihi standar. Kandungan Hg diamati melalui metode studi survei purposive sampling dengan 4 stasiun selama 3 minggu pengamatan sampel dengan analisis Spektrofotometer Serapan Atom. Hasil pengamatan terhadap akumulasi logam merkuri (Hg) pada  ikan patin di Danau Sipin dari 0,0930 sampai 0,3960 ppm. Katagori kandungan Hg yang bisa di torelansi menurut standar  SNI untuk produksi pangan perikanan termasuk moluska dan udang adalah 1 ppm dan 0,5 ppm untuk ikan predator. Jadi budidaya ikan Danau Sipin masih aman untuk dikonsumsi manusia. Nilai Hg airnya dari 0,0001 sampai 0,0009 ppm. Kandungan Hg ini lebih rendah bila dibandingkan dengan standar kualitas air oleh Kementerian Lingkungan Hidup No. 51 Pada tahun 2004 nilai ambang untuk biota adalah 0,001 mg / l (ppm). Kemudian kategori kandungan logam berat Hg di perairan Danau Sipin masih di ambang normal. Terjadinya perbaikan Hg air diduga karena ditemukan sejumlah ikan sapu-sapu, Hypostomus plecostomus dan tanaman eceng gondok, Eichhornia crassipes yang dapat menyerap Hg di perairan. Keadaan kualitas air pengamatan berupa  suhu  rata-rata 30-32 ° C, pH 6,6 sampai 7,4 dan DO 7,0 sampai 8,4 ppm. Kisaran parameter ini layak untuk budidaya ikan patin (Pangasius Hyphopthalmus), karena mendukung untuk pertumbuhan dan kelangsungan hidup.Kata kunci: Bioakumulasi Hg, Danau Sipin, ikan patin

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

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.

scholarly journals Study on the Immobilization Technology of Hydroxyapatite in Heavy Metal Contaminated Sediment

2021 ◽  
Author(s):  
Yunfei Li
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Rapid Development ◽  
Quality Standard ◽  
Curing Agent ◽  
Contaminated Sediment ◽  
Overlying Water ◽  
Metal Pollutants ◽  
Immobilization Technology ◽  
Heavy Metal Pollutants

With the rapid development of industry, large amounts of untreated industrial waste water and domestic sewage carried heavy metal pollutants below into the water body with enrichment in sediments. When environmental conditions change, enrichment of heavy metals in sludge may be released into the overlying water causing the overlying water quality standard. The agent on immobilization of heavy metals in sludge is to be an extremely promising remediation technology in order to reduce impact on the environment. This test selects Hydroxyapatite and Nano Hydroxyapatite as curing agent and puts it into heavy metal pollution by different proportion. The paper conducts the research of curing agent and optimizes the better one. The paper selected HAP as matrix and CaO and MgO as different additives and studied complex condition of heavy metals in sediment of curing effect. Also the paper conduct the static releases test for pollutants in cured sediment in order to provide technical support for contaminated sediment remediation of heavy metal.

scholarly journals Kehadiran Logam-Logam Berat (Pb, Cd, Cu, Zn) Pada Air dan Sedimen Sungai Lowatag, Minahasa Tenggara - Sulawesi Utara (The Occurrence of Heavy Metals (Pb, Cd, Cu, Zn) on Water and Sediment in the River Lowatag, Southeast Minahasa - North Sulawesi)

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Jesica O Patty ◽  
Ratna Siahaan ◽  
Pience V Maabuat
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Government Regulation ◽  
Threshold Limit Value ◽  
Purposive Sampling ◽  
Limit Value ◽  
North Sulawesi ◽  
Water And Sediment

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 

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