 |
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| air quality The degree to which air is polluted; the type and maximum concentration of man-produced pollutants that should be permitted in the atmosphere | |||
| kwalità tal-arja: 5 phrases in 1 subject |
| Environment | 5 |
|
| |||
| air quality The degree to which air is polluted; the type and maximum concentration of man-produced pollutants that should be permitted in the atmosphere | |||
| kwalità tal-arja: 5 phrases in 1 subject |
| Environment | 5 |