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2. CT Value - Wikipedia

   en.wikipedia.org/wiki/CT_Value

   CT Values are an important part of calculating disinfectant dosage for the chlorination of drinking water.A CT value is the product of the concentration of a disinfectant (e.g. free chlorine) and the contact time with the water being disinfected.

3. Drinking water quality in the United States - Wikipedia

   en.wikipedia.org/wiki/Drinking_water_quality_in...

   Chlorine and chloramine are allowed at a level of up to 4 milligrams per liter (mg/L) or 4 parts per million (ppm) in drinking water. [41] However, federal standards includes antimicrobials and any pesticide products and devices that make antimicrobial claims.

4. U.S. government to give out free COVID-19 tests. Here's how ...

   www.aol.com/u-government-free-covid-19-214600104...

   The federal government will again provide free COVID-19 test kits to U.S. residents beginning next week. All households will be eligible to order four free tests starting Sept. 25, according to ...

5. Portable water purification - Wikipedia

   en.wikipedia.org/wiki/Portable_water_purification

   Kits are available in camping stores that include an iodine pill and a second pill (vitamin C or ascorbic acid) that will remove the iodine taste from the water after it has been disinfected. The addition of vitamin C, in the form of a pill or in flavored drink powders, precipitates much of the iodine out of the solution, so it should not be ...

6. Get four free at-⁠home COVID-⁠19 tests from the CDC - AOL

   www.aol.com/four-free-home-covid-19-143825274.html

   Every household may place an order to receive four free COVID-⁠19 rapid tests delivered directly to your home. ... Free at-home COVID-19 test kits are available from the U.S. government at www ...

7. How to order free at-home COVID-19 tests from the government

   www.aol.com/news/order-free-home-covid-19...

   Americans can order free at-home COVID-19 test kits from the government. Here's everything you need to know to get free rapid tests for COVID testing at home.