Figure 1

Symptoms of exposure among the subjects. A - Skin problems; B - Eye problems; C - Nose irritation; D – Throat pain; E – Nasal blockage; F – Cough; G – Excessive sputum production; H – Wheezing; I – Allergies; J – Breathing troubles.
Symptoms of exposure among the subjects. A - Skin problems; B - Eye problems; C - Nose irritation; D – Throat pain; E – Nasal blockage; F – Cough; G – Excessive sputum production; H – Wheezing; I – Allergies; J – Breathing troubles.