PESTICIDE RISK ASSESSMENT FOR BIRDS AND MAMMALS IN …

For example, if the first-tier PT of 1 is replaced by a median or mean value, this would suggest that the risk assessment will only relate to those 50 % individuals that fall under this PT. If the 90th percentile of the PT distribution is used, 90 % of the population will be protected, provided that no other parameters drive the risk assessment ................
................