Adult hospital admissions following acute exposures to pesticides are very uncommon and are more often due to parasuicide than to accidents. 2. Most accidental pesticide incidents are work-related. 3. Males are more likely to be involved than females (2.9:1). 4. Life-threatening and fatal consequences developed in 24% of 54 incidents. 5. Of the 10 fatalities, eight were caused by paraquat, eight were due to parasuicide and two to non-work related accidents.