Changes in exposure to ambient fine particulate matter after relocating and long term survival in Canada: quasi-experimental study.
Hong ChenJay S KaufmanToyib OlaniyanLauren PinaultMichael TjepkemaLi ChenAaron van DonkelaarRandall V MartinPerry HystadChen ChenMegan Kirby-McGregorLi BaiRichard T BurnettTarik BenmarhniaPublished in: BMJ (Clinical research ed.) (2021)
In Canada, decreases in PM2.5 were associated with lower mortality, whereas increases in PM2.5 were associated with higher mortality. These results were observed at PM2.5 levels considerably lower than many other countries, providing support for continuously improving air quality.