Testing Techniques

Other testing techniques can find yet more information.  Pesticides, antibiotics, personal care products, pharmaceuticals, alcohol and tobacco have all also been measured in wastewater.  As most state authorities will tell you, testing for SARS-CoV-2 in wastewater can be a helpful indicator of presence of COVID-19 in the area, but it’s not a guarantee that there’s an infectious person in the community as viral shedding can happen for several months after infection in some people.  Similarly, the virus denatures and dissolves fast in wastewater, so a clean sewage reading doesn’t mean there’s no COVID-19 around.(1)

Source: 
1.  Explainer: Wastewater - How does wastewater testing work?  Ellen Phiddian.  Cosmos, Chemistry. March 12, 2021   https://cosmosmagazine.com/science/chemistry/explainer-wastewater/

2. Heavy Metals Test General Kit. (image below) https://www.heavymetalstest.com/_general.php