air-pollution : 131 phrases in 14 subjects |
Agriculture | 4 |
Environment | 69 |
General | 11 |
Health care | 3 |
Labor law | 1 |
Measuring instruments | 1 |
Municipal planning | 1 |
Name of organization | 8 |
Natural resourses and wildlife conservation | 17 |
Natural sciences | 2 |
Taxes | 1 |
Technology | 1 |
Transport | 6 |
United Nations | 6 |