| index | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm10 | 53 (Unhealthy for Sensitive Groups) | 45 (Moderate) | 18 (Good) | 9.8 (Good) | 10 (Good) | 11 (Good) | 12 (Good) | 15 (Good) | 14 (Good) | 19 (Good) | 15 (Good) | 13 (Good) | 13 (Good) | 19 (Good) | 19 (Good) | 16 (Good) | 11 (Good) | 11 (Good) | 11 (Good) | 13 (Good) | 11 (Good) | 12 (Good) | 12 (Good) | 12 (Good) | 11 (Good) | 12 (Good) | 21 (Moderate) |
Groen en parken in de stad
Houston 61%
Verenigde Staten: 70% Venezuela: 41% IJsland: 72%fijnstof PM2,5
Houston 12 (Good)
Plezier van tijd doorbrengen in de stad
Houston 59%
Verenigde Staten: 75% Bahama’s: 53% Venezuela: 41% IJsland: 89%fijnstof PM10
Houston 25 (Moderate)
Luchtvervuiling
Houston 55%
Verenigde Staten: 29% Bahama’s: 52% Venezuela: 59% IJsland: 13%Vuilnisverwijdering
Houston 71%
Verenigde Staten: 71% Bahama’s: 29% Venezuela: 18% IJsland: 79%Beschikbaarheid en kwaliteit van het drinkwater
Houston 63%
Verenigde Staten: 71% Bahama’s: 55% Venezuela: 28% IJsland: 96%Schoonheid en netheid
Houston 53%
Verenigde Staten: 60% Bahama’s: 35% Venezuela: 22% IJsland: 75%Geluids- en lichtvervuiling
Houston 56%
Verenigde Staten: 47% Bahama’s: 39% Venezuela: 47% IJsland: 23%Waterverontreiniging
Houston 57%
Verenigde Staten: 44% Bahama’s: 58% Venezuela: 76% IJsland: 8,4%Houston Firehall
| index | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| pm10 | 53 | 45 | 18 | 9.8 | 10 | 11 | 12 | 15 | 14 | 19 | 15 | 13 | 13 | 19 | 19 | 16 | 11 | 11 | 11 | 13 | 11 | 12 | 12 | 12 | 11 | 12 | 21 |