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AIR QUALITY DATA SOURCE
Find out more about contributors and data sourcesIndex | High | ||
Tree pollen | Low | ||
Grass pollen | Low | ||
Weed pollen | High |
Weather | Few clouds |
Temperature | 59°F |
Humidity | 90% |
Wind | 2.3 mp/h |
Pressure | 30.2 Hg |
# | city | US AQI |
---|---|---|
1 | Yellowknife, Northwest Territories | 103 |
2 | Hull (Ile), Quebec | 67 |
3 | Gatineau, Quebec | 59 |
4 | Hamilton, Ontario | 56 |
5 | Sault Ste Marie, Ontario | 55 |
6 | Courtenay, British Columbia | 54 |
7 | Halifax, Nova Scotia | 53 |
8 | Oakville, Ontario | 53 |
9 | Mississauga, Ontario | 52 |
10 | Sudbury, Ontario | 52 |
(local time)
SEE WORLD AQI RANKING9:43, Oct 2
US AQI
58*
live AQI index
Moderate
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Moderate | 58* US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 15.3*µg/m³ |
PM2.5
x3.1
PM2.5 concentration in Ancaster is currently 3.1 times the WHO annual air quality guideline value
Sensitive groups should wear a mask outdoors GET A MASK | |
Sensitive groups should run an air purifier GET AN AIR PURIFIER | |
Close your windows to avoid dirty outdoor air GET A MONITOR | |
Sensitive groups should reduce outdoor exercise |
Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Today | Moderate 58 AQI US | 82.4° 59° | ||
Tuesday, Oct 3 | Moderate 64 AQI US | 87.8° 60.8° | ||
Wednesday, Oct 4 | Moderate 61 AQI US | 84.2° 62.6° | ||
Thursday, Oct 5 | Moderate 57 AQI US | 78.8° 64.4° | ||
Friday, Oct 6 | Good 44 AQI US | 62.6° 57.2° | ||
Saturday, Oct 7 | Good 9 AQI US | 57.2° 46.4° | ||
Sunday, Oct 8 | Good 5 AQI US | 50° 44.6° |
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