空气污染在 Grand Forks ：实时空气质量指数和烟雾警报。
| index | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 6.3 (Good) | 13 (Moderate) | 20 (Moderate) | 14 (Moderate) | 2.9 (Good) | 2.9 (Good) | 2.4 (Good) | 3.9 (Good) | 6.8 (Good) | 7.2 (Good) | 6.2 (Good) | 5.8 (Good) | 4.3 (Good) | 2.6 (Good) | 3.3 (Good) | 2.2 (Good) | 2.6 (Good) | 2.2 (Good) | 9.8 (Good) | 3.3 (Good) |
Grand Forks City Hal
| index | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 | 2016-11 | 2016-10 | 2016-09 | 2016-08 | 2016-07 | 2016-06 | 2016-05 | 2016-04 | 2016-03 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm25 | 6.3 | 13 | 20 | 14 | 2.9 | 2.9 | 2.4 | 3.9 | 6.8 | 7.2 | 6.2 | 5.8 | 4.3 | 2.6 | 3.3 | 2.2 | 2.6 | 2.2 | 9.8 | 3.3 |
* Pollution data source:
https://openaq.org
(AirNow)
The data is licensed under CC-By 4.0