Assessment on Specific Organic Substances, Nutrients and Heavy Metals in Surface Water and Sediments of Bohai Rim Area

2010 ◽  
Vol 113-116 ◽  
pp. 923-927
Author(s):  
Shuai Ma ◽  
Si Yu Zeng
Keyword(s):  
Heavy Metals ◽  
Surface Water ◽  
Quality Standard ◽  
Assessment System ◽  
Evaluation Standards ◽  
Evaluation Standard ◽  
Bohai Rim ◽  
Index Evaluation ◽  
Environmental Goals ◽  
Classification Index

An environmental assessment system was established to analyze and evaluate the pollution status of surface water and sediments of Bohai Rim Area. Considering the requirements of evaluation item completeness and criteria strictness, this paper selected the Multimedia Environmental Goals, Classification Index of Soil Fertility, Organic Index Evaluation Standard and Soil Environmental Quality Standard as the evaluation standards. The results show that for each media, benzo(a)anthracene, benzo(a)pyrene and dibenzo(a,h)anthracene are the major pollutants among PAHs. And for the sediments, the organic matter and total nitrogen reach the level of fertile pollution in the area. The specific organic compounds and heavy metals (including As) are both concentrated in Tianjin, in accordance with the development level of industry of the area.

scholarly journals Investigation of heavy metals on water quality and sediment: A case study Bireuen, Aceh Utara and Lhokseumawe City

2021 ◽  
Vol 6 (2) ◽  
pp. 177-184
Author(s):  
Mahidin Mahidin ◽  
M. Zaki ◽  
Asri Gani ◽  
Mariana Mariana ◽  
M. Irham ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Water ◽  
Environmental Pollution ◽  
Quality Standard ◽  
Clean Water ◽  
Industrial Growth ◽  
Living Things ◽  
Main Thing

Environmental pollution around the world in the last 10 years has continued to increase with increasing industrial growth. Environmental pollution has reduced the availability of clean water. Clean water is the main thing for all living things on this earth. Therefore, environmental pollution that occurs in the clean water crisis must be handled as soon as possible and reduced by various effective policies. The main focus of this research is to analyze heavy metal pollution on the surface of the water, clean water, and sediments caused by industrial activities. This research is a field study by taking samples directly at the location and then analyzing them in the laboratory. The results of the analysis showed that the highest heavy metal Fe on the water surface was found in Bireuen Regency by 0.28% compared to Lhokseumawe City with 0.0029% and Aceh Utara 0.0029%. Meanwhile, the highest heavy metals contained in clean water were recorded in Bireuen and Lhokseumawe City at 0.007% and 0.0064%, respectively. The results of the heavy metal analysis in the highest sediment were found in North Aceh at 42.93% compared to 8.02% and 18.12% for Bireuen and Lhokseumawe. Overall, the analysis carried out in this study shows that the surface water, clean water, and sediments have been contaminated by heavy metals. Meanwhile, the quality standard for surface water is 0.3 mg/l, net ai is 1.0 mg/l, and sediment is 20bj.

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
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Surface Water ◽  
River Basin ◽  
Gold Mining ◽  
Quality Standard ◽  
Anthropogenic Sources ◽  
Water Quality Standard ◽  
Permissible Level ◽  
Wide Range

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.

Evaluation and Content of Various Heavy Metals in the Bohai Bay (China) during the Autumn

2014 ◽  
Vol 675-677 ◽  
pp. 295-298
Author(s):  
Hong Wei Wang ◽  
Duan Bo Cai ◽  
Zhong Fu ◽  
Chun Long Zhao ◽  
Na Zhu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Water ◽  
Water Samples ◽  
Metal Content ◽  
Bottom Water ◽  
Sea Water ◽  
Quality Standard ◽  
Bohai Bay ◽  
Seawater Quality

There were 48 sea water samples collected from Bohai Bay (China) in autumn, 2013. In surface water the heavy metal content from high to low was Cu, Zn, Cr, As, Pb, Cd, Hg, as Zn, Cu, Cr, As, Pb, Cd, Hg in bottom water. Cr and As were up to the first class value of the seawater quality standard except Zn and Cu.

Experimental investigation on water quality standard of Yangtze River water source heat pump

2012 ◽  
Vol 66 (5) ◽  
pp. 1103-1109 ◽  
Author(s):  
Zenghu Qin ◽  
Mingwei Tong ◽  
Lin Kun
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
River Water ◽  
Heat Pump ◽  
Yangtze River ◽  
Water Source ◽  
Quality Standard ◽  
Heat Pumps ◽  
The Yangtze River ◽  
Water Conditions

Due to the surface water in the upper reaches of Yangtze River in China containing large amounts of silt and algae, high content of microorganisms and suspended solids, the water in Yangtze River cannot be used for cooling a heat pump directly. In this paper, the possibility of using Yangtze River, which goes through Chongqing, a city in southwest China, as a heat source–sink was investigated. Water temperature and quality of the Yangtze River in the Chongqing area were analyzed and the performance of water source heat pump units in different sediment concentrations, turbidity and algae material conditions were tested experimentally, and the water quality standards, in particular surface water conditions, in the Yangtze River region that adapt to energy-efficient heat pumps were also proposed. The experimental results show that the coefficient of performance heat pump falls by 3.73% to the greatest extent, and the fouling resistance of cooling water in the heat exchanger increases up to 25.6% in different water conditions. When the sediment concentration and the turbidity in the river water are no more than 100 g/m3 and 50 NTU respectively, the performance of the heat pump is better, which can be used as a suitable river water quality standard for river water source heat pumps.

scholarly journals Spatial variability of nitrate pollution and its sources in a hilly basin of the Yangtze River based on clustering

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuhuan Cui ◽  
Jie Wang ◽  
Shuang Hao
Keyword(s):  
Surface Water ◽  
Yangtze River ◽  
Drainage Basin ◽  
Quality Standard ◽  
Nitrate Pollution ◽  
Middle Part ◽  
Lake Basin ◽  
The Yangtze River ◽  
Nitrate Sources ◽  
Groundwater Samples

AbstractNitrate (NO3−) pollution is a serious global problem, and the quantitative analysis of its sources contributions is essential for devising effective water-related environmental-protection policies. The Shengjin Lake basin, located in the middle to lower reaches of the Yangtze River in China was selected as the research area in our study. We first grouped 29 surface water samples and 33 groundwater samples using cluster analysis, and then analyzed potential nitrate sources for each dataset of δ15N–NO3− and δ18O–NO3− isotope values by applying a Bayesian isotope-mixing model. Our results show that the nitrogen pollution in the surface-ground water in the study area seriously exceeded to class V of the Environmental Quality Standard of Surface Water of China. The NO3− in surface water from the mid-upper reaches of the drainage basin mainly originates from soil nitrogen (SN) and chemical fertilizer (CF), with contribution rates of 48% and 32%, respectively, and the NO3− in downstream areas mainly originates from CF and manure and sewage (MS), with contribution rates of 48% and 33%, respectively. For the groundwater samples, NO3− mainly originates from MS, CF, and SN in the mid-upper reaches of the drainage basin and the northside of Dadukou near the Yangtze River, with contribution rates of 34%, 31%, and 29%, respectively, whereas NO3− in the lower reaches and the middle part of Dadukou mainly originates from MS, with a contribution rate of 83%. The nitrogen conversion of surface water in lakes and in the mid-upper reaches is mainly affected by water mixing, while the groundwater and surface water in the lower plains are mainly affected by denitrification. The method proposed in this study can expand the ideas for tracking nitrate pollution in areas with complex terrain, and the relevant conclusions can provide a theoretical basis for surface and groundwater pollution control in the hilly basin of Yangtze River.

Evaluation of chemical contamination of surface water and groundwater in the landfill city of Ardabil

2015 ◽  
Vol 16 (SE) ◽  
pp. 631-637
Author(s):  
Maliheh Shahmorad Moghanlou ◽  
Ebrahim Fataei
Keyword(s):  
Heavy Metals ◽  
Surface Water ◽  
International Standards ◽  
Chemical Contamination ◽  
Mean Values ◽  
Surface Water And Groundwater ◽  
Turbidity Level ◽  
The Mean ◽  
Spss Software ◽  
Hydrodynamic Thickness

Todays in our country the problem of waste disposal and the effects of entry alluvial aquifer their leachate and pollution of aquifers by hydrodynamic thickness in the direction of groundwater flow is highly regarded analytical descriptive study was conducted. To this purpose, the concentration of heavy metals plumb and cadmium and some physicochemical and biological parameters of surface water and groundwater around the landfill city of Ardabil in two time periods in spring 2015 and summer seasons were measured. Sampling, preparation and analysis of samples in accordance with the standard method of station 10 to within 5.5 km of landfill were Ardabil. Measurement of heavy metals, plumb and cadmium by atomic absorption were performed. The Results were analyzed by SPSS software, for the comparison of each parameter with drinking water standards and Agriculture tests comparing the average (T-TEST) was used. The results showed that groundwater and surface water of heavy metals, non-contaminated area and their results are below international standards. The mean values ??of microbiological and physicochemical parameters other than normal turbidity level and at the level of 1% were significantly lower than international standards.

scholarly journals Spatial assessment and source identification of heavy metals pollution in surface water using several chemometric techniques

2016 ◽  
Vol 106 (1-2) ◽  
pp. 292-300 ◽  
Author(s):  
Azimah Ismail ◽  
Mohd Ekhwan Toriman ◽  
Hafizan Juahir ◽  
Sharifuddin Md Zain ◽  
Nur Liyana Abdul Habir ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Surface Water ◽  
Source Identification ◽  
Spatial Assessment ◽  
Metals Pollution ◽  
Heavy Metals Pollution ◽  
Chemometric Techniques
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