Ralf Petto

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aquatic ecotoxicology terrestrial ecotoxicology analytical chemistry environmental fate ecological modelling plant protection products biocides medicinal products veterinary products oecd testing environmental risk assessment chemical assessment glp-compliant studies biodegradation studies chemical toxicity non-target organisms chemical guidelines residue trials phytotoxicity toxicity testing lethal concentration behavioral studies pesticide registration field studies laboratory studies residue analysis sublethal effects daphnia tests fish toxicity sediment-water testing analytical dose verification environmental remediation soil organism testing aquatic plant studies endocrine disruptors oecd 202 oecd 211 oecd 203 oecd 236 oecd 248 nitrogen transformation tests carbon transformation tests physical-chemical properties testing test method validation species sensitivity distribution laboratory safety toxicity pathways ecotoxicological assessments pollinator testing