The Arctic is a polar region located at the northernmost part of Earth.
8 Jul, 2020About Brahmaputra River: The Brahmaputra called Yarlung
3 Jul, 2020AQI Category, Pollutants and Health Breakpoints | ||||||||
AQI Category (Range)↓ | → Categories for the various readings of the pollutant based on the health breakpoints or health impacts | |||||||
PM10 24-hr |
PM2.5 24-hr |
NO2 24-hr |
O3 8-hr |
CO 8-hr (mg/m3) |
SO2 24-hr |
NH3 24-hr |
Pb 24-hr |
|
Good (0-50) | 0-50 | 0-30 | 0-40 | 0-50 | 0-1.0 | 0-40 | 0-200 | 0-0.5 |
Satisfactory (51-100) | 51-100 | 31-60 | 41-80 | 51-100 | 1.1-2.0 | 41-80 | 201-400 | 0.5 –1.0 |
Moderately polluted (101-200) | 101-250 | 61-90 | 81-180 | 101-168 | 2.1- 10 | 81-380 | 401-800 | 1.1-2.0 |
Poor (201-300) | 251-350 | 91-120 | 181-280 | 169-208 | 10-17 | 381-800 | 801-1200 | 2.1-3.0 |
Very poor (301-400) | 351-430 | 121-250 | 281-400 | 209-748* | 17-34 | 801-1600 | 1200-1800 | 3.1-3.5 |
Severe (401-500) | 430 + | 250+ | 400+ | 748+* | 34+ | 1600+ | 1800+ | 3.5+ |
AQI | Associated Health Impacts |
Good (0–50) | Minimal Impact |
Satisfactory (51–100) | May cause minor breathing discomfort to sensitive people. |
Moderately polluted (101–200) | May cause breathing discomfort to people with lung disease such as asthma, and discomfort to people with heart disease, children and older adults. |
Poor (201–300) | May cause breathing discomfort to people on prolonged exposure, and discomfort to people with heart disease |
Very Poor (301–400) | May cause respiratory illness to the people on prolonged exposure. Effect may be more pronounced in people with lung and heart diseases. |
Severe (401-500) | May cause respiratory impact even on healthy people, and serious health impacts on people with lung/heart disease. The health impacts may be experienced even during light physical activity. |