scholarly journals CYPRINUS CARPIO: BIOINDICATOR OF HEAVY METAL POLLUTION IN YAMUNA RIVER, DELHI REGION

2021 ◽  
Vol 9 (6) ◽  
pp. 805-812
Author(s):  
Sapna Gupta ◽  
Vartika Singh ◽  
M. L. Aggarwal

Heavy metals being persistent pose conglomerated hazards towards safety and human health. Impacts of heavy metal pollution can be exhibited by both natural and anthropogenic activities. Therefore, developing nations are under immense pressure of controlling the environmental impacts of increasing industrialization and pollution, subject to their limited resources and infrastructure. Bioindicators are important biological entities to determine the positive/ negative changes in the desired ecosystem. They are the fast respondents towards the slightest changes and provide early reliable results. Identifying & establishing a suitable bioindicator can provide a faster and inexpensive way to address the undesirable effects. Cyprinus carpio, a freshwater fish, is used to determine the Lead (Pb) at different locations of Yamuna River and the bioavailability in different tissues. In the present study, we are trying to establish fish as an indicator of lead pollution in the river. It is a well-known fact that the water bodies are most affected by human activities. Polluted water bodies can lead to adverse effects on human health. Lead is also known to cause phytotoxicities in aquatic and terrestrial plants. This study is therefore an attempt to identify the harmful impacts of lead in River ecology. Ten fish specimens of C. carpio were collected from four different sites of Yamuna River and analyzed for Lead accumulation in fish tissues. High concentration and accumulation were observed in specimens collected from various locations and found to be higher than the permissible limits for human consumption.

Author(s):  
Emeka Donald Anyanwu

Rivers are subjected to various kinds of natural and anthropogenic activities among which, indiscriminate and illegal sand mining is a major factor. The heavy metal content of a Nigerian river was studied between December 2017 and November 2018 in 6 stations in relation to suitability for human consumption using pollution indices. The indices used were Heavy Metal Pollution Index (HPI) and Contamination Index (Cd). Eight metals were evaluated using standard methods and compared with Nigerian Drinking Water Quality Standard. Some metals like iron, cadmium and lead exceeded limits; manganese, chromium and nickel exceeded limits in the dry season in some stations while copper and zinc were all within limits. The dry season values were significantly (P<0.05) higher than the wet season values. NPI showed all the stations exceeded the threshold (100) especially stations 1, 4 – 6 while Cd showed that stations 3 and 2 had low and medium contamination potential risks respectively and stations 1, 4 – 6 had high contamination potential risk. The indices effectively captured the effect of the anthropogenic activities (sand mining, swimming, washing, etc) in the river and showed that the water quality was not suitable for human consumption.


2020 ◽  
Vol 22 ◽  
pp. e00925 ◽  
Author(s):  
Qiaoqiao Zhou ◽  
Nan Yang ◽  
Youzhi Li ◽  
Bo Ren ◽  
Xiaohui Ding ◽  
...  

2012 ◽  
Vol 610-613 ◽  
pp. 1682-1685 ◽  
Author(s):  
Xing Guan Ma ◽  
Zhe Pei ◽  
Jun Ping Sun ◽  
Jin Xiang Fu ◽  
Yu Lan Tang ◽  
...  

The paper introduced the source and harmfulness of heavy metal pollution in water environment and summarized the applications of the chemical method, physiochemical method and biological method in heavy metal pollution of sudden emergency accident. Meanwhile, the heavy metal pollution emergency processing technology of rivers, lakes and other water bodies were elaborated and the emergency engineering technology of heavy metal pollution in rivers and lakes were analyzed. Finally, the application of bioremediation on heavy metal pollution caused by sudden emergency accident was prospected.


1985 ◽  
Vol 6 (1-11) ◽  
pp. 123-128 ◽  
Author(s):  
Lulz Drude de Lacerda ◽  
Wolfgang Christian Pfeiffer ◽  
Marlene Fiszman

2021 ◽  
Vol 4 (1) ◽  
pp. 36-43
Author(s):  
Yuliza Fitri ◽  
Yusni Ikhwan Siregar ◽  
Bintal Amin

Located in Teluk Bayur bay the port is of the five biggest and busiest ports in Indonesia. High sea transportation activities and anthropogenic activities may lead to heavy metal pollution. The purpose of this study was to determine the concentration of Pb and Cu metals, in seagrass (Sargassum sp.) and to analyze the feasibility of consuming Sargassum sp. The method used in this study is a survey method, by analyzing heavy metal at Laboratory Pekerjaan Umum of Riau Province. The water quality temperatures 30-31oC, and salinity of 30-31 ppt, appeared curred velocity 0.06-0.08 m/sec, water transparency 100% with a depth of ± 1 m and pH 7. Pb concentrations the highest is 2.9367 μg/g at stations close to the port and the lowest is 2.2506 μg/g at stations close to tourist areas, and the concentration of Cu metal shows the highest 3.3850 μg/g at stations close to community settlements, and the lowest is 2.7772 μg/g near the port area of ​​Teluk Bayur. Based on the PTWI value, Sargassum sp. those originating from the waters of Teluk Bayur, West Sumatra, are still safe for consumption. Based on the Anova Pb and Cu tests in Sargassum sp. do not different (p> 0.05).


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