4/22/2021 0 Comments Ground Zero Ocean
Meme about problem, problems, picture related to, problem, ground and solved, and belongs to categories places, silly, trolling, etc.
![]() Its mind-boggling when you see the amount of plastics thats on our beaches. He also said the Regional District of Nanaimos marine litter resolution passed at almost 95 per cent support at the Federation of Canadian Municipalities annual conference June 1-3 in Halifax. After meticulously sampling her houses water and testing it with at-home testing kits, Walters discovered that it had lead levels far higher than those considered safe. The chemistry of the water flowing through her pipes had changed profoundlywith toxic results. Thats when she reached out to Marc Edwards, an engineer at Virginia Tech University who studies water treatment and aquatic chemistry. For a new report, published yesterday in the journal Environmental Science and Technology, Edwards team returned to ground zero and used chemical analysis of water samples to see just how deep the contamination in Walters home ran. However, in 2014, the cash-strapped city decided to end its agreement with Detroit and start pulling water from the Flint River until a new aqueduct was built. What officials didnt seem to anticipate was the effect that the slightly more acidic water of the Flint River would have on the citys pipes. When the city switched water supplies, this rust began to be stripped away, strongly discoloring the water and leaching the large amounts of lead from that rust into the water. This lead was the source of the initial contamination, Edwards says. ![]() But these measures amount to just a band-aid, according to Edwards. Thats not true. Definitively solving the lead pipe crisis will require more drastic efforts than just replacing existing pipesit will require an expensive, time-consuming rehaul of the citys entire plumbing system. Flint is now in the midst of an effort to replace the citys thousands of lead pipes, but its unclear how long it will take or how much it will end up costing. In my opinion, the Flint story reveals the challenges to maintain our aging water infrastructure nationwide, says Liu, who was not involved in this study. Guyette says that on his travels across the country, hes encountered many Americans who now know and worry about lead in their own drinking water. What this study does is only add to the evidence of how widespread the concern should be, he says. Edwards is now working to study the efficacy of Flints citywide efforts to replace lead pipes, and says this study is just the first step in getting the full picture. While Walters had plastic pipes inside of her house, many older homes have galvanized iron pipes in their walls, meaning that removing any chance of lead contamination would take costly renovations.
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