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A decline in some pollinator species has been reported in several different regions of the world.The causes of these declines have received much attention from regulatory authorities.While pesticides are playing key role for crop protection in China, it is important to minimize the health risk to benefit insects e.g.honey bees.The risk assessment process is used to determine if the application of a pesticide pose any risk to honey bees.In practice, the process for risk assessment has three main components: a preliminary exposure assessment (EA) that yields the predicted environmental concentrations (PECs) of the pesticide that the bees are exposed to in a severe case; an effect assessment that identify the hazard properties and dose-effect relationship of the pesticide on honey bees, this is resulting into the LD50 or the predicted no effect environmental concentration (PNECs); and the risk characterization that compares the LD50 and/or PNEC to the PEC then draw a conclusion whether the risk is acceptable or not, and if the further risk assessment is necessary.The poster suggests the implementation of a tiered risk assessment scheme with a simple and cost -effective first tier to more complex higher tier studies under field conditions.Each of the tiers will have to ensure that the appropriate level of protection is achieved.The first tier triggers are based on comparing a hazard quotient (HQ) or exposure toxicity ratio (ETR) against a threshold trigger value.The HQ or ETR is the ratio of the PEC to a standard index of the pesticide's toxicity to honey bees.Higher tier tests are required when concerns have not been adequately resolved at lower tiers.The choice and design of any higher tier study should be such that it addresses concerns high-lighted at lower tiers.In carrying out semi-field and field studies it is important to ensure that adequate exposure has been achieved and it is therefore necessary to carry out residue studies to determine the residues in pollen and nectar in honey sacks and pollen sacks of bees entering the hive if the risk is caused by oral exposure and the residues on the bees entering the hive if the risk is caused by contact exposure.The dietary exposure is calculated based on residue concentrations in pollen and nectar and the daily consumption of pollen and nectar.Then, risk quotient (RQ) be calculated by comparing the dietary exposure with the related PNECs.Uncertainty should be also addressed by analysis all inputs and assumptions during the whole risk assessment process.