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Impact of Riverine Pollutants on the Water Quality of Lake Chaohu, China
| Content Provider | Scilit |
|---|---|
| Author | Zhang, Wang Lei, Kun Yang, Libiao Lv, Xubo |
| Copyright Year | 2019 |
| Description | Journal: Iop Conference Series: Materials Science and Engineering The water environmental capacities for $COD_{Mn}$, TP, and $NH_{3}$-N in Lake Chao were estimated with a zero-dimensional model using Class III water quality as the target. The effects of river pollutants transported by the eight major tributaries on the lake's water quality were then analyzed. The results showed that the water environmental capacities for $COD_{Mn}$, TP, and $NH_{3}$-N in Lake Chao for 2002-2008 were 6.21-6.74, 0.05-0.06, and 1.01-1.27 × $10^{4}$ ton/yr, respectively. The safety margins for $COD_{Mn}$, TP, and $NH_{3}$-N, based on the lake's background reserves, were 5.17-5.86, 0.01-0.03, and 0.89-1.12 × $10^{4}$ ton/yr, respectively. Annually, the river pollutants transported by the tributaries to the lake amounted to 3.58-4.49 × $10^{4}$ ton of $COD_{Mn}$, 0.19-0.27 × $10^{4}$ ton of TP, and 4.09-5.47 × $10^{4}$ ton of $NH_{3}$-N. The total amount of $COD_{Mn}$ exported by the tributaries was less than the water environmental capacity (accounting for 56-68%) and below the safety margin (accounting for 70-82%) of the lake. However, the total amounts of TP and $NH_{3}$-N were 3.78-14.75 times higher than the water environmental capacity and the safety margin of the lake. To prevent further deterioration of the lake's water quality, it is critical to strengthen pollution control in the rivers around the lake and to reduce the sources of river pollution. |
| Related Links | https://iopscience.iop.org/article/10.1088/1757-899X/484/1/012049/pdf |
| ISSN | 17578981 |
| e-ISSN | 1757899X |
| DOI | 10.1088/1757-899x/484/1/012049 |
| Journal | Iop Conference Series: Materials Science and Engineering |
| Issue Number | 1 |
| Volume Number | 484 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2019-03-19 |
| Access Restriction | Open |
| Subject Keyword | Journal: Iop Conference Series: Materials Science and Engineering Water Science and Technology Water Environmental Capacities Water Quality |
| Content Type | Text |
| Resource Type | Article |
