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After 75 days those restrictions began to be lifted on April 8 - a milestone in China's fight against COVID-19 as the country reported nearly zero new local infections. The COVID-19 lockdown in Wuhan, China, resulted in a 63% reduction in nitrogen dioxide concentrations, according to our new research. Air pollution is already a global public health crisis, as it kills seven million people each year, according to the World Health Organisation. In February, South Korea had one of the largest coronavirus outbreaks outside mainland China but aggressive testing and contact tracing methods have brought cases there under control. À quelque chose malheur est bon.
Over the course of Wuhan's 10-week lockdown, the city experienced its cleanest air quality on record for the months of February and March.
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Both New Delhi and the country's commercial center Mumbai experienced their best March air quality on record in 2020. Analysts chose the three-week timeframe to reflect either the period with the strictest lockdowns, or - during longer lockdown periods such as in Wuhan - to coincide with the peak number of daily reported coronavirus cases. À propos de la qualité de l'air et des mesures de la pollution atmosphérique : The second graph shows the difference between NO₂ concentrations in Wuhan and the synthetic control group before and after the lockdown. Street-by-Street Map . Plastic bags and other trash litter the shoreline of Manila Bay in the Philippines as environmental activists and volunteers attempt to collect them, calling for a ban on the use of plastic bags.Hong Kong’s skyline is shrouded in a haze of pollution in January 2017. Reducing global heat-trapping emissions is the best way to clean up our skies and prevent avoidable pollution-related deaths, scientists say. China’s government has set 2030 as a deadline for the country to reach its peak for emissions of carbon dioxide, the gas that scientists and environmentalists cite as the primary cause of climate change.A partial view of the city of Lyon, France, through a haze of pollution in January 2017. While our analysis indicates that pollution fell by up to 24 micrograms per cubic metre for the first two weeks of the lockdown, we assumed that over the full duration of the lockdown it fell by an average of 20 micrograms per cubic meter. Vous cherchez plus de produits liés à la qualité de l'air?
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