| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | environmental health [noun] | 318 |
|
| 2 | environmental health [noun] | 318 |
|
| 3 | environmental health officer | 199 |
|
| 4 | environmental health [noun sg] | 184 |
|
| 5 | environmental health [noun pl] | 130 |
|
| 6 | environmental health officers | 107 |
|
| 7 | environmental health officer | 92 |
|
| 8 | environmental health department | 56 |
|
| 9 | environmental health department | 49 |
|
| 10 | environmental health committee | 11 |
|
| 11 | environmental health committee | 11 |
|
| 12 | environmental health departments | 7 |
|
