BOD and COD Measurement Methods (IMAGE)
Caption
International study shows that freshwater polluted by fecal material can be determined more quickly and reliably using a new technique.
Credit
From Jiao et al, doi:10.1126/sciadv.abc7318. This work is licensed under CC BY-NC (http://creativecommons.org/licenses/by-nc/4.0/)
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CC BY-NC
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