adiposetissue bloodchemicalanalysis chemicaldetectors congresses effectofpollutionon environmentalmonitoring foodadulterationandinspection hazardoussubstances industrialtoxicology measurement methods monitoring physiologic physiologicaleffect plantindicators plants pollutants pollution riskfactors technologicalinnovations toxicitytesting toxicology wa670m59251991 wa671n277m1991