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Pollutant | Averaging period | AQG | RL | Comments |
---|---|---|---|---|
PM10 | 1 day Calendar year |
45μg/m3 15μg/m3 |
99th percentile (3-4 exceedance days per year). Updated 2021 guideline Updated 2021 guideline |
|
PM2.5 | 1 day Calendar year |
15μg/m3 5μg/m3 |
99th percentile (3-4 exceedance days per year). Updated 2021 guideline Updated 2021 guideline |
|
O3 | Maximum daily 8-hour mean Peak season (b) |
100μg/m3 60μg/m3 |
99th percentile (3-4 exceedance days per year). New 2021 guideline New 2021 guideline |
|
NO2 | 1 hour 1 day Calendar year |
200μg/m3 25μg/m3 10μg/m3 |
99th percentile (3-4 exceedance days per year). New 2021 guideline Updated 2021 guideline |
|
BaP | Calendar year | 0.12ng/m3 | ||
SO2 | 10 minutes 1 day |
500μg/m3 40μg/m3 |
99th percentile (3-4 exceedance days per year). New 2021 guideline |
|
CO | 1 hour Maximum daily 8-hour mean 1 day |
30mg/m3 10mg/m3 4mg/m3 |
99th percentile (3-4 exceedance days per year). New 2021 guideline |
|
C6H6 | Calendar year | 1.7μg/m3 | ||
Pb | Calendar year | 0.5μg/m3 | ||
As | Calendar year | 6.6ng/m3 | ||
Cd | Calendar year | 5ng/m3 (c) | ||
Ni | Calendar year | 25ng/m3 |
Notes:
(a) As WHO has not set an AQG for BaP, C6H6, As and Ni, the RL was estimated assuming an acceptable risk of additional lifetime cancer risk of approximately 1 in 100 000.
(b) Average of daily maximum 8-hour mean concentration in the six consecutive months with the highest six-month running average O3 concentration.
(c) AQG set to prevent any further increase of Cd in agricultural soil, likely to increase the dietary intake of future generations.
Sources: WHO (2000, 2006, 2021).
For references, please go to https://www.eea.europa.eu/publications/status-of-air-quality-in-Europe-2022/europes-air-quality-status-2022/world-health-organization-who-air or scan the QR code.
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