Unit Toxicology of Products and their Safe Use

The unit assesses whether the health of all persons can be ensured when the product is used as intended. People who may come into contact with plant protection products and biocidal products include operators, workers and unintended third parties such as residents and bystanders, as well as pets and farm animals.

The unit directly implements European regulations and national laws for biocidal and plant protection products. These stipulate the necessity of performing a safety assessment of the application for the evaluation and authorization procedures for pesticides. This is carried out in line with the EU regulations on pesticides (Regulation (EC) No. 1107/2009) and biocides (Regulation (EC) No. 528/2012), as well as with the regulation on Classification, Labelling and Packaging (CLP)(Regulation (EC) 1272/2008).

Pesticide products will be assessed with regard to the following main aspects:

• Toxicity of the pesticide products (generally acute oral, dermal and inhalation toxicity, the potential for skin and eye irritation as well as sensitisation);
• Estimation of cumulative effects resulting from mixtures of the active substances and the co-formulants used;
• Determination of the dermal absorption of toxicological relevant substances (e.g. active substances, metabolites, substances of concern) of a pesticide product;
• Determination of the exposure of operators, workers and third parties to toxicologically relevant active substances and substances of concern due to the proposed applications for the products;
• Assessment of the health risk(s) resulting from uses of the products by comparing the estimated exposure with the toxicological reference values;
• Determination of proposals for the classification and labelling concerning toxicological aspects of the pesticide product according to the CLP regulation;
• Stipulation of restrictions on use, personal protection measures or other risk mitigation requirements to ensure the safe handling and application of the products.

The unit is involved in the further development of testing methods as well as testing and assessment strategies for application safety. For example, models have been developed for the exposure assessment of professional operators for outdoor applications (Großkopf et al.short foret alii (lat. "and others"), 2013) as well as applications in greenhouses (Großkopf et al.short foret alii (lat. "and others"), 2016 and 2020) of plant protection products.

The unit is also involved in the EU harmonisation of the risk assessment of plant protection products and biocidal products (e.g. EFSAshort forEuropean Food Safety Authority Guidance on pesticides exposure assessment of operators, workers, residents and bystanders (EFSAshort forEuropean Food Safety Authority Journal 2014, 12, 3874 and EFSAshort forEuropean Food Safety Authority Journal 2022, 20, 7032); EFSAshort forEuropean Food Safety Authority Guidance on dermal absorption (EFSAshort forEuropean Food Safety Authority Journal 2017, 15, 4873); Ad hoc Working Group - Human Exposure (HEAdhoc) of the European Chemicals Agency (ECHAshort forEuropean Chemicals Agency)).

Additionally, the unit represents the BfRshort forGerman Federal Institute for Risk Assessment on specific issues in numerous national and international bodies and advises the German government on technical issues relating to the safe use of plant protection products and biocidal products.

The unit also assesses pesticides that may be used for pest control as arranged by the authorities in accordance with Section 18 of the German “protection against infection” law regarding.

The risk classification and assessment system Product Safety-Pesticides (ProSafe-Pesticides) is used for the toxicological evaluation of the pesticide products. This web application was developed to support the cumulative evaluation of pesticides concerning human health (see below About ProSafe-Pesticides).

Adler-Flindt S, Martin S, 2019. Comparative cytotoxicity of plant protection products and their active ingredients. Toxicology in Vitro, 54, 354–366.
External Link:https://doi.org/10.1016/j.tiv.2018.10.020

Bloch D, Marx-Stoelting Pshort forphosphorus, Martin S, 2020. Towards a tiered test strategy for plant protection products to address mixture toxicity by alternative approaches in human health assessment. Pest Management Science, 76, 3326–3332.
External Link:https://doi.org/10.1002/ps.6034

European Food Safety Authority (EFSAshort forEuropean Food Safety Authority), 2014. Guidance on the assessment of exposure of operators, workers, residents and bystanders in risk assessment for plant protection products. EFSAshort forEuropean Food Safety Authority Journal 2014, 12(10), 3874.
External Link:http://www.efsa.europa.eu/de/efsajournal/pub/3874

European Food Safety Authority (EFSAshort forEuropean Food Safety Authority), 2017. Buist H, Craig Pshort forphosphorus, Dewhurst I, Hougaard Bennekou S, Kneuer C, Machera K, Pieper C, Court Marques D, Guillot G, Ruffo F and Chiusolo A. Guidance on dermal absorption. EFSAshort forEuropean Food Safety Authority Journal 2017, 15(6), 4873.
External Link:https://www.efsa.europa.eu/en/efsajournal/pub/4873

European Food Safety Authority (EFSAshort forEuropean Food Safety Authority), 2022. Charistou A, Coja T, Craig Pshort forphosphorus, Hamey Pshort forphosphorus, Martin S, Sanvido Oshort foroxygen, Chiusolo A, Colas M and Istace E. Guidance on the assessment of exposure of operators, workers, residents and bystanders in risk assessment for plant protection products. EFSAshort forEuropean Food Safety Authority Journal 2022, 20(1), 7032.
External Link:https://www.efsa.europa.eu/en/efsajournal/pub/7032

Großkopf C, Mielke H, Westphal D, Erdtmann-Vourliotis M, Hamey Pshort forphosphorus, Bouneb F, Rautmann D, Stauber F, Wicke H, Maasfeld W, Salazar JD, Chester G and Martin S, 2013. A new model for the prediction of agricultural operator exposure during professional application of plant protection products in outdoor crops. Journal für Verbraucherschutz und Lebensmittelsicherheit, 8, 143–153.
External Link:https://www.openagrar.de/receive/openagrar_mods_00012668

Großkopf C, Martin S, Mielke H, Hamey Pshort forphosphorus, Mercier T, Bouneb F, Muñoz IA, Machera K, Rautmann D, Erdtmann-Vourliotis M, and Tiramani M, 2016. Joint development of a new Greenhouse Argicultural Operator Exposure Model for hand-held application. BfRshort forGerman Federal Institute for Risk Assessment Wissenschaft; 01/2016 (ISBN 978-3-943963-36-6).
External Link:https://mobil.bfr.bund.de/cm/350/joint-development-of-a-new-greenhouse-agricultural-operator-exposure-model-for-hand-held-application.pdf

Großkopf C, Mielke H, Bloch D, Martin S, 2020. Update of the Greenhouse Agricultural Operator Exposure Model Amendment to Project Report 01/2016. BfRshort forGerman Federal Institute for Risk Assessment Wissenschaft; 02/2020 (ISBN 978-3-948484-12-5).
External Link:https://mobil.bfr.bund.de/cm/350/revision-of-the-greenhouse-agricultural-operator-exposure-model.pdf

Karaca M, Fischer BC, Willenbockel CT, Tralau T, Marx-Stoelting Pshort forphosphorus, Bloch D, 2021. Effects of co-formulants on the absorption and secretion of active substances in plant protection products in vitro. Archives of Toxicology 95, 3205–3221.
External Link:10.1007/s00204-021-03140-x

Kurth D, Wend K, Adler-Flindt Sarah, Martin S, 2019. A comparative assessment of the CLP calculation method and in vivo testing for the classification of plant protection products. Regulatory toxicology and pharmacology 101, 79–90.
External Link:https://doi.org/10.1016/j.yrtph.2018.11.012

Lichtenberg B, Mischke U, Scherf S, Röver M and Martin S, 2015. Hazard and risk based allocation of safety instructions to operators handling pesticides. Journal für Verbraucherschutz und Lebensmittelsicherheit, 10, 373-384.
External Link:https://link.springer.com/article/10.1007/s00003-015-0952-x

Pieper C, Schwebke I, Noeh, I, Uhlenbrock, K, Hübner N, Solecki R, 2014. Antimikrobielle Produkte im Haushalt – eine Betrachtung zu Auswirkungen auf Gesundheit und Umwelt sowie zum Nutzen für den Anwender. Hygiene & Medizin 39, 68-76.
External Link:https://www.bfr.bund.de/cm/343/antimikrobielle-produkte-im-haushalt.pdf

Pieper C, Holthenrich D, Schneider H 2014, Gesundheitliche Risiken durch Schädlingsbekämpfungsmittel. Bundesgesundheitsblatt - Gesundheitsforschung – Gesundheitsschutz, 5, 574-584.
External Link:https://link.springer.com/article/10.1007/s00103-013-1920-1

Stein B, Michalski B, Martin S, Pfeil R, Ritz V, Solecki R, 2014. Human health risk assessment from combined exposure in the framework of plant protection products and biocidal products. Journal of Consumer Protection and Food Safety 4, 367–376.
External Link:https://link.springer.com/article/10.1007/s00003-014-0915-7