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2022-03-30
Pesticide Regulation TALK |Webinar II: Application of (Q)SAR and Expert Knowledge for the Impurity Present in Technical Grade Pesticides
Language:EN
Speaker:Chasel Huang
Free
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Background

(Q)SAR models could provide useful information on impurities of unknown toxicity, and they have become one of the most important tools to assess the equivalence of a new source (TC/TK) when compared to the reference source. Along with this, an increasing number of countries and organizations (e.g., EU countries, Australia, Brazil, FAO/WHO) requires the applicants to perform (Q)SAR analysis for new/increased levels of impurities in their technical grade active ingredients via pesticide registration by equivalence. In our upcoming webinar, REACH24H will discuss basic concepts, requirements in different countries, application of expert knowledge, establish an acceptable upper limit concentration and uncertainty analysis for (Q)SAR application in assessing the toxicological equivalence of technical grade active ingredients. And beyond that, REACH24H will also share our practices on (Q)SAR applications in toxicological evaluation of new pesticide active ingredients as well as identifying relevant impurities/metabolites in accordance with China pesticide regulation.

Contents
  • The generic approach for assessing toxicological equivalence

  • (Q)SAR basics

  •  Requirements for (Q)SAR analysis in different countries

  •  Application of expert knowledge: Expert Review

  • Establish an acceptable upper limit concentration for the impurity of toxicological concern

  •  China News and REACH24H’s practices

SCHEDULE

DateTime(GMT+8)World ClockLanguage
Mar. 30th, 202222:00 ~ 23:00London: 15:00-16:00 | New York: 10:00-11:00English

Open for Registration(click here)

Speaker
Chasel Huang
Pesticide Risk Assessment Expert
Dr. Chasel Huang graduated with a PhD in Ecotoxicity from the Research Center for Eco-Environmental Sciences at the Chinese Academy of Sciences. His previous research work includes in-vitro tests, HTS/HCS, ecotoxicity, and toxic mechanisms induced by industrial chemicals or pesticides. Mr. Huang is mainly responsible for pesticide risk assessments, including health and environmental risk assessments, identification of endocrine disruptors, QSAR, pesticide residue analysis, evaluation of pesticide efficacy and resistance.
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