Levels of two major air pollutants have been drastically reduced since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research.
Environment
May 11, 2020
0
11
Traffic pollution for most parts of the UK is plummeting thanks to the COVID-19 lockdown but more urban ozone—a dangerous air pollutant which can cause airway inflammation in humans—is probably being generated, say experts ...
Environment
May 7, 2020
0
10
Traffic pollution for most parts of the UK is plummeting thanks to the COVID-19 lockdown but more urban ozone—a dangerous air pollutant which can cause airway inflammation in humans—is probably being generated, say experts ...
Environment
May 6, 2020
0
7
Atmospheric contamination is one of society's main concerns, with nitrogen dioxide (NO2) and tropospheric ozone (O3) being among the contaminants that are giving rise to the most concern. In principle, the measures to reduce ...
Environment
Apr 27, 2020
0
5
The first Earth Day protests, which took place on April 22, 1970 brought 20 million Americans—10% of the U.S. population at the time—into the streets. Recognizing the power of this growing movement, President Richard ...
Environment
Apr 17, 2020
0
12
High loadings of fine particulate matter (PM2.5) during haze are mostly produced from the chemical reactions of reactive gas precursors, including sulfur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3), and volatile organic ...
Environment
Apr 13, 2020
0
8
As the only alkaline gas in the atmosphere, ammonia can react with sulfur dioxide and nitrogen oxides to form secondary fine particles, accelerating the generation of atmospheric haze. Ammonia is therefore considered as a ...
Environment
Apr 13, 2020
0
15
A new study highlights the importance of reducing fossil fuel combustion, not only to curb the trend of global warming, but also to improve the quality of China's coastal waters. The findings were recently published in Environmental ...
Earth Sciences
Mar 27, 2020
0
7
The concentration levels of nitrogen dioxide, a primary air contaminant, have declined 64% in major Spanish cities after the implementation of measures to fight COVID-19. Levels have fallen most in Barcelona, with an 83% ...
Environment
Mar 25, 2020
0
6
France's stay-at-home orders to combat the coronavirus outbreak have produced a 20 to 30 percent decline in overall air pollution levels in Paris, according to a report from the region's air quality monitoring agency.
Environment
Mar 25, 2020
2
3
