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Worldwide, PM 10 concentrations of 70 μg/m 3 and PM 2.5 concentrations of 35 μg/m 3 have been shown to increase long-term mortality by 15%. [29] More so, approximately 4.2 million of all premature deaths observed in 2016 occurred due to airborne particulate pollution, 91% of which occurred in countries with low to middle socioeconomic status.
All data are valid for the year 2022 and are taken from the Air Quality Life Index (ACLI) of the University of Chicago. ... 6.2 5.9 5.9 4.9 4.7 1,330,932 127
The guidelines stipulate that PM 2.5 should not exceed 5 μg/m 3 annual mean, or 15 μg/m 3 24-hour mean; and that PM 10 should not exceed 15 μg/m 3 annual mean, or 45 μg/m 3 24-hour mean. [2] For ozone (O 3 ), the guidelines suggest values no higher than 100 μg/m 3 for an 8-hour mean and 60 μg/m 3 peak season mean. [ 2 ]
A separate Year Average Common Air Quality Index (YACAQI) is also defined, in which different pollutant sub-indices are separately normalised to a value typically near unity. For example, the yearly averages of NO 2, PM 10 and PM 2.5 are divided by 40 μg/m 3, 40 μg/m 3 and 20 μg/m 3, respectively.
Average levels of PM 2.5 were measured using aqicn.org's World Air Quality Index data, and a formula developed by AirNow was used to convert the PM 2.5 figure into micrograms per cubic meter of air ( μg / m 3 ) values. Among the 70 capital cities investigated, Baghdad, Iraq is the worst performing one, with PM 2.5 levels going up +31.6 ...
In United States environmental law, a non-attainment area is an area that exceeds pollution limits for one or more criteria pollutants: ozone (O 3), atmospheric particulate matter (PM 2.5 /PM 10), lead (Pb), carbon monoxide (CO), sulfur oxides (SO x), and nitrogen oxides (NO x).
The Pollutant Standards Index (PSI) is a type of air quality index used in Singapore, which is a number used to indicate the level of pollutants in air.Initially PSI was based on five air pollutants, but since 1 April 2014 it has also included fine particulate matter (PM 2.5).
In 2010, the year of the WHO survey, the average PM 10 level in Delhi was 286 μg/m 3. In 2013, the PM 2.5 level was 153 μg/m 3. These levels are considered very unhealthy. In Gwalior, the city with the worst air quality in India, the PM 10 and PM 2.5 levels were 329 μg/m 3 and 144 μg/m 3 respectively. For comparison, the PM 10 and PM 2.5 ...