Yes we can perform COD for surface water. It is the parameter for water analysis. It is required for every water sample.

Yes, a COD test can be performed for surface water. At Amsterdam Airport Schiphol we measure both O2 and COD because of runoff water during winter operations. O2 is being measured real time every 15 minutes. COD is being tested every 24h based on 1h mixed samples from the surface water system.

I think yes as COD is one of the basic parameters for water quality

Regards,

K

Yes, you know that wastewater effluent reaches the rivers i.e. surface water and hence the need to perform COD and BOD. In addition, COD is used in calculating water quality index.

You can also look at this

https://www.rmagreen.com/rma-blog/what-is-chemical-oxygen-demand-cod-what-is-biological-oxygen-demand-bod

You can undertake a COD test on surface water but values in unpolluted water are low (

Of course you can as long as you are interested in determining the organic content of the surface water. It's implied that other parameters must also be analyzed such as chloride anion content and the existence of several reductive compounds (e.g., ferrous cations) that could interfere with COD analysis. Furthermore, in order to obtain more reliable results, I would analyze both filtrated and unfiltrated water...

of-course we can with some arrangements my be needed.

Yes, of course, for example in fish farms it is done to ensure good oxygenation of said water

yes, we can perform because COD is also an important parameter of water analysis.

Yes, of course, it is essential. I think this will help you.

https://doi.org/10.1016/B0-12-369397-7/00663-4