Table 2: Base of rules in the fuzzy model inserted in Matlab. São José do Rio Preto, Brazil, 2011- 2013.
| 1. If (PM10 is Acceptable) and (Temperature is High) and (NO2 is Acceptable) and (Wind is Strong) then (Number of hospitalizations is L) (1) |
| 2. If (PM10 is Acceptable) and (Temperature is High) and (NO2 is Acceptable) and (Wind is Weak) then (Number of hospitalizations is L) (1) |
| 3. If (PM10 is Acceptable) and (Temperature is Low) and (NO2 is Acceptable) and (Wind is Strong) then (Number of hospitalizations is L) (1) |
| 4. If (PM10 is Acceptable) and (Temperature is Low) and (NO2 is Acceptable) and (Wind is Weak) then (Number of hospitalizations is L) (1) |
| 5. If (PM10 is Acceptable) and (Temperature is High) and (NO2 is Unacceptable) and (Wind is Strong) then (Number of hospitalizations is ML) (1) |
| 6. If (PM10 is Acceptable) and (Temperature is High) and (NO2 is Unacceptable) and (Wind is Weak) then (Number of hospitalizations is M) (1) |
| 7. If (PM10 is Acceptable) and (Temperature is Low) and (NO2 is Unacceptable) and (Wind is Strong) then (Number of hospitalizations is M) (1) |
| 8. If (PM10 is Acceptable) and (Temperature is Low) and (NO2 is Unacceptable) and (Wind is Weak) then (Number of hospitalizations is M) (1) |
| 9. If (PM10 is Unacceptable) and (Temperature is High) and (NO2 is Acceptable) and (Wind is Strong) then (Number of hospitalizations is ML) (1) |
| 10. If (PM10 is Unacceptable) and (Temperature is High) and (NO2 is Acceptable) and (Wind is Weak) then (Number of hospitalizations is ML) (1) |
| 11. If (PM10 is Unacceptable) and (Temperature is Low) and (NO2 is Acceptable) and (Wind is Strong) then (Number of hospitalizations is M) (1) |
| 12. If (PM10 is Unacceptable) and (Temperature is Low) and (NO2 is Acceptable) and (Wind is Weak) then (Number of hospitalizations is M) (1) |
| 13. If (PM10 is Unacceptable) and (Temperature is High) and (NO2 Unacceptable) and (Wind is Strong) then (Number of hospitalizations is M) (1) |
| 14. If (PM10 is Unacceptable) and (Temperature is High) and (NO2 Unacceptable) and (Wind is Weak) then (Number of hospitalizations is MH) (1) |
| 15. If (PM10 is Unacceptable) and (Temperature is Low) and (NO2 Unacceptable) and (Wind is Strong) then (Number of hospitalizations is MH) (1) |
| 16. If (PM10 is Unacceptable) and (Temperature is Low) and (NO2 Unacceptable) and (Wind is Weak) then (Number of hospitalizations is H) (1) |
L: low; medium-low: ML; M: medium; MA: medium-high; H: high.