During the course of their work, laboratory personnel may be exposed to small doses of chemicals that do not have the potency to generate an immediate effect on the senses. Overtime, this exposure may cause discomfort and the development of exposure symptoms. All laboratory personnel should be able to recognize the following signs of a chemical exposure:
- Headaches
- Difficulty breathing or shortness of breath
- Increased mucous production
- Irritation or watering of the eyes
- Irritation of the nose or throat
- Narcotic effects such as confusion, dizziness, drowsiness, or collapse
- An unfamiliar chemical odor
- Irritation, rash, or discoloration of the skin
- Unusual muscle cramps or joint pain
- Nausea
If any of these symptoms occur, laboratory personnel should notify other personnel, evacuate the laboratory, and discontinue work until proper arrangements are made to prevent exposure.