scholarly journals Arsenic occurrence in water bodies in Kharaa river basin

2018 ◽  
Vol 18 (44) ◽  
pp. 12-19
Author(s):  
Azzaya T ◽  
Burmaa G ◽  
S Alen ◽  
Narangarav T ◽  
Nyamdelger Sh

Distribution of arsenic (As) and its compound and related toxicology are serious concerns nowadays. Gold mining activity is one of the anthropogenic sources of environmental contamination regarding As and other heavy metals. In Mongolia, the most productive gold mining sites are placed in the Kharaa river basin. A hundred water samples were collected from river, spring and deep wells in this river basin. Along with total As and its species-As(III) and As(V), examination of concentration levels of other key parameters, 21 heavy metals with pH, total hardness, electric conductivity, anion and cations, was also carried out. In respect to the permissible limit formulated by the Mongolian National Drinking water quality standard (MNS 0900:2005, As10 µg/l), the present study showed that most of samples were found no contamination. In Kharaa river basin, an average concentration of total As in surface water was 4.04 µg/l with wide range in 0.07−30.30 µg/l whereas it was 2.24 µg/l in groundwater. As analysis in surface water in licensed area of Gatsuurt gold mining showed a mean concentration with 24.90 µg/l presenting higher value than that of value in river basin by 6 orders of magnitude and it was 2 times higher than permissible level as well. In Boroo river nearby Boroo gold mining area, As concentration in water was ranged in 6.05−6.25 µg/l. Ammonia pollution may have present at estuary of Zuunmod river in Mandal sum with above the permissible level described in national water quality standard. Geological formation of the rocks and minerals affected to change of heavy metal concentration, especially As and uranium (U) at spring water nearby Gatsuurt-Boroo improved road.

Author(s):  
Desy Rosarina ◽  
Ellysa Kusuma Laksanawati ◽  
Dewi Rosanti

This paper explained heavy metals and chemical properties from the Cisadane River in Tangerang City. A survey method was used to determine the place for sampling the test material. Water measurement is carried out in situ and laboratory tests. Data retrieval was done by purposive sampling determining three observation stations, namely in the Taman Gajah Tunggal park area (station1), Babakan Cikokol residential area (station 2), and Karawaci paper mill area (station 3). The analysis was carried out exactly using analysis. Namely, analysis carried out in the laboratory. The parameters observed were COD, phosphate, DO, BOD, pH. Results of this study informed the water quality in the Cisadane City river did not meet Class II Water Quality Standards based on Government Regulation Number 82, the year 2001. The COD content only meets class II water quality standards at stations 1 and 3. BOD and phosphate content is high and exceeds class II water quality standards. Heavy metal content still meets the water quality standard threshold with a value of Cd less than 0.01 mg/L, Cu less than 0.02 mg/L, Pb less than 0.03mg/L, and Cr less than 0.05mg/L. Zn content exceeds the water quality standard threshold at station three and meets water quality standards at stations 1 and 2 with a value of less than 0.05mg/L.


2015 ◽  
Vol 2 (1) ◽  
pp. 260 ◽  
Author(s):  
Retno Wimbaningrum ◽  
Endang Arisoesilaningsih ◽  
Catur Retnaningdyah ◽  
Serafinah Indriyani

<p>Irrigated agriculture is dependent on an adequate water supply of usable quality. The analysis of physico­chemical parameters of surface water inJember District was done for the criteria of irrigation water quality. Surface water comprises spring water, falls, rivers, and tertiary irrigation channels. For this purpose, three sectors or locations were chosen to take twenty seven water samples in the summer season (September to October, 2013). DO, electrical conductivity (ECw), pH, and water temperature values were measured directly in the field,while analyses of nitrate (NH3-N), orthophosphate, total dissolved solids (TDS), and bicarbonate (HCO3-) was conducted in a laboratory. The results indicated that ECw, TDS, pH, water temperature,NH3-N, and orthophosphate were under the limits set out by the Rules of the Republic of Indonesia Government (PP RI) No. 82, 2001, for water quality standard and FAO for irrigation water quality standard. Thus, the surface water of Jember District was considered to be suitable for irrigation at the sampled location.</p><p><br /><strong>Keywords</strong>: Surface water quality; irrigation; physico-chemical parameter; Jember District.</p>


2017 ◽  
Vol 14 (1) ◽  
pp. 46
Author(s):  
Meirani Agustina ◽  
Sri Cahyo Wahyono ◽  
Tetti Novalina Manik

The landfills (TPA) Cahaya Kencana is applying system Sanitary Landfill, the landfill system that is done by the garbage dumped and compacted, then covered with dirt as cover and carried out continuously each end of the operation. This research is very important investigate the distribution of leachate contaminated leachate approximately systems Sanitary Landfill based on the resistivity value and the content of chemical elements in the holding pond. Based on the results of data processing 2D geoelectric Wenner configuration on four tracks with each track length of 100 m were processed using Res2dinv, obtainable at a depth of between 0.75 – 11.6 m resistivity values in the leachate is 4.34 – 10.0 Ωm track 2, 3, and 4, but are not on track 1. The results of laboratory test on four samples consecutive for content. BOD leachate from 26.2 - 121.0 mg/l; and COD 132.5 – 276.2 mg/l is not exceeded the limit of waste water quality standard, except for sample 4 with a COD value of 472.9 mg/l while for pH 7.24 - 7.39 mg/l and the concentration of heavy metals in leachate outlet still on the threshold of normal, where Pb <0.0019 mg/l; Cd <0.0019 mg/l; and Cr <0,0035mg/l.


2019 ◽  
Vol 35 (4) ◽  
pp. 1254-1264 ◽  
Author(s):  
Yet Yin Hee ◽  
Suhaimi Suratman ◽  
Azyyati Abdul Aziz

This paper explores the water quality status of the Kelantan River from the middle to lower reaches of the basin, during the dry and wet seasons, in order to provide a scientific reference for protecting local aquatic environments and managing river basin development in the future. Although research shows that this river basin is fell in Class I under Malaysian National Water Quality Standard in term of heavy metals, the river was overall classified as slightly polluted, based on the Malaysian Department of Environment-Water Quality Index (DOE-WQI), with total suspended solids (up to 291 mg/L) reaching the allowable threshold limit established by DOE. Field data suggests that the decomposition of organic matter could have resulted in lowering the dissolved oxygen levels in the water column. With regards to heavy metals, it was found that they mainly originated from natural sources, but with an increasing level of contribution from anthropogenic activities.


2016 ◽  
Vol 12 (1) ◽  
pp. 75
Author(s):  
Wage Komarawidjaja

Kanigoro at Ngablak Sub-District in Magelang is one of the Villages which is topographically lower than the adjacent village in the same sub-district. The main activity of village inhabitant is farmer in intensive agriculture that is indicated by a lot of fertilizer and pesticide utilization. Therefore, the exceeding dosage of fertilizer and pesticide in plant cultivation could become an anxious environmental problem due to the high concentration of them in springs water that they called as Tuk and river water more than the quality standard of National regulation. Based on Data analysis, it can be concluded that laboratory analysis result of water quality in the village Kanigoro, generally still meet the quality standard. This is showed by the concentration of heavy metals (As, Cu, Cd, Hg, Zn and Fe) and pesticides (Aldrin, BHC, Chlordane, DDT, Dieldrin, Endrin, Heptachlor,Heptachlo epoxide, Lindane, Methoxychlor and Toxaphene), except for some points sampling contain heavy metals plumbum (Pb) exceeded water quality standard of the Minister of Health (Depkes) and Government Regulation Class I (raw water) of PP 82/2001. While the density of microbial total coliform and E. coli detected abundant compare to the water quality standard of the Minister of Health, particularly for the use of water as raw water or clean water. However, it is possible to utilize water directly for agriculture and fish farming activities and the use for drinking water after cooked first


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