Chemical Oxygen Demand (COD) as a Key Water Pollution Metric
Table of Contents
Introduction:
An introduction to the topic “Chemical Oxygen Demand (COD) as a Key Water Pollution Metric” Chemical Oxygen Demand (COD) is a crucial parameter used to measure the level of organic pollutants in water bodies. It helps determine the extent of contamination from domestic waste, agricultural runoff, and industrial discharges.
Seasonal variations such as summer dryness or monsoon inflow can alter COD levels dramatically, impacting aquatic life and ecosystem stability.
This blog explores findings from Indian and international studies on COD trends in lakes and rivers, offering insights into how it reflects water quality and environmental stress.
These insights are valuable for conservation, wetland health assessments, and pollution control initiatives in freshwater systems like Bichnaiyya Lake.
📚 This article includes an excerpt from an original thesis, shared here for academic awareness and public benefit. Content has been editorially formatted for readability.
Excerpt Section:
Chemical Oxygen Demand (COD), which measures the quantity of organic contaminants present in water bodies, is an important metric in hydrological research.
It provides an assessment of pollution levels and water quality by measuring the organic substances that are capable of chemical oxidation in terms of oxygen.
Ni et al. (2018) reported that COD represents the most important environmental variable to affect the community of plankton which accords with the result of water quality.
The higher level of COD in the summer is caused by greater amounts of organic matter from domestic and agricultural waste, in addition to sewage treatment plant effluent. (Latif et al., 2010; Ramchandra et al., 2014; Akaahan and Azua, 2016; Ling et al., 2017).
The COD value of water ranged from 15.50 – 60.10 mg/dm3 during the dry season from the Wupa River (summer season) (Adano Amin Jaʼafar et al., 2022).
Solomon Kai Bona and Farooq Ahmed Lone (2023) reported COD range from 20 to 80 mg/l in the summer period of the study at Dal Lake and its tributaries in Kashmir Valley, Srinagar City, India.
Source Citation:
Researcher’s full name: Chaudhary Narendra Kumar
Title: Seasonal variations in hydrological parameters and status of fish diversity in Bichnaiyya Lake wetland of District Basti, UP, India
Guide(s): Srivastav Susmita
University: Siddharth University
Completed Date: 2024
Excerpt Page Number: Page 13
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