Original title: lead in drinking water of many places in Canada exceeds the standard. Many water suppliers do not test it at all
According to a survey conducted by multiple media organizations and universities, lead in drinking water in several cities in Canada exceeds the standard.
According to a survey of more than 120 journalists from 9 universities and 10 media organizations that lasted for more than a year, lead content in tap water of residents in 11 cities including Montreal exceeded Canadian federal guidelines, AP reported. Of the 12000 samples tested, 33% exceeded the Canadian safety standard of 5 ppb (5 / 1 billion), and 18% exceeded the American Standard of 15 ppb.
The researchers believe that some schools and nurseries running water lead content may affect children's health. What's more, many water suppliers don't test at all.
Canada is known for its clean natural lakes, and its residents rarely hear about pollution in the country. Bruce & middot; Lanfield, a Canadian water safety researcher, said: 'it's amazing. 'some residents who provided samples to the researchers fretted about the test results and worried about health risks. Andrew Middleton Kaidi, a retired professor based in Edmonton, thought the water quality would be OK after replacing the new water pipe a few years ago, but said he would be alert enough to stop drinking the tap water when he found that the lead content was as high as 28 ppb.
Officials in the areas with high levels of lead told reporters they knew lead pipes would contaminate drinking water and were looking to replace old infrastructure.
The Associated Press reported that after receiving the analysis report forwarded by the media, Montreal mayor Valerie & middot; Prantel promised to test the lead content in the tap water of 100000 households in the city and accelerate the replacement of lead containing pipes.