Water quality assessment based on Nemerow pollution index method: A case study of Heilongtan reservoir in central Sichuan province, China.

ABSTRACT: In this paper, three monitoring sections were set up in Heilongtan Reservoir, and water samples were collected in 2019, 2020, and 2021 for the determination of physical and chemical properties such as permanganate index, chemical oxygen demand, and biochemical oxygen demand (BOD5). The water quality was evaluated by the single factor pollution index method and the Nemerow pollution index method, and the temporal and spatial changes of water quality were analyzed.The single factor pollution index method determines the water quality category by identifying the single worst indicator of water quality, based on the classified water quality category. The Nemerow pollution index method emphasizes the most polluting factor while also taking into account the contribution of other factors in the as

SUBMITTER: Su K 

PROVIDER: S-EPMC9387827 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature