Recent Examples on the WebFireworks permitted: Cylinder fountains, cone fountains, sparklers containing no magnesium, chlorate or perchlorate; snakes containing no mercury, small smoke devices. Scott Gleeson, USA TODAY, 1 July 2022 That’s because Martian regolith is full of perchlorate, an oxidative compound that stunts plants’ growth and can be harmful to humans. Joanna Thompson, Scientific American, 2 June 2022 So far during the Biden administration, the EPA has failed to protect drinking water from toxins, such as perchlorate, and decided to go forward with Trump’s deregulatory greenhouse gas emissions rule for aircrafts. Mekedas Belayneh, The New Republic, 25 Apr. 2022 In the Southwest, perchlorate has been detected in groundwater that entered Lake Mead in Nevada.CBS News, 31 Mar. 2022 Massachusetts and California, for example, limit perchlorate in drinking water to 2 parts per billion and 6 parts per billion, respectively.CBS News, 31 Mar. 2022 Across the San Gabriel Valley, compounds like perchlorate, used in rocket fuel, and other chemicals seeped into something like 170 square miles, reaching into the aquifer serving more than a million and a half people.Los Angeles Times, 12 Oct. 2021 The monkeys at the Mesa breeding facility are drinking well water tainted with perchlorate, a contaminant leached from ponds containing rocket fuel runoff from an adjacent defense contractor. Rob O'dell, USA TODAY, 9 Oct. 2021 Agents found that Dodson had purchased 50 pounds of potassium perchlorate in the spring. John Caniglia, cleveland, 1 Oct. 2021 See More