How to Analyze Chemical Oxygen Demand in Water
11:16
YouTubeUW CEE
How to Analyze Chemical Oxygen Demand in Water
A step by step guide on how to analyze chemical oxygen demand (COD) in water using test kits from Hach. This video was created by Jackie Cooper, Lab Manager of the Environmental Engineering Core Facility (EECF), of the Civil and Environmental Engineering Department at the University of Wisconsin-Madison.
22.9K viewsSep 14, 2020
Chemical Oxygen Demand Testing
A video shows workers in full chemical protective gear spraying strawberry fields, and it is fueling a bigger debate about pesticides, worker safety, and what consumers are eating long term. Strawberries often appear on pesticide-residue watch lists like the Dirty Dozen, so people are asking fair questions: if workers need this much protection during spraying, what testing and regulation should shoppers expect before the fruit reaches stores? This clip does not establish a specific safety proble
0:22
A video shows workers in full chemical protective gear spraying strawberry fields, and it is fueling a bigger debate about pesticides, worker safety, and what consumers are eating long term. Strawberries often appear on pesticide-residue watch lists like the Dirty Dozen, so people are asking fair questions: if workers need this much protection during spraying, what testing and regulation should shoppers expect before the fruit reaches stores? This clip does not establish a specific safety proble
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