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sector:agriculture:agricultural_soils:use_of_pesticides [2024/10/10 11:53] – [Background] doering | sector:agriculture:agricultural_soils:use_of_pesticides [2025/02/20 09:36] (current) – [Trend discussion for Key Sources] niebuhr | ||
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- | As activity data, domestic sales of pesticides with the active substances chlorothalonil, | + | As activity data, domestic sales of pesticides with the active substances chlorothalonil, |
__Table 3: Domestic sales of active substances, as of 1987, in t/a__ | __Table 3: Domestic sales of active substances, as of 1987, in t/a__ | ||
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While this results from the large quantities of chlorothalonil-containing pesticides sold, it is also due to the high chlorothalonil concentrations in such pesticides and to the high permitted maximum HCB concentrations (0.3 g/kg), in chlorothalonil as a technical active substance, that applied prior to 2000. Due to the revised data, changes in HCB quantities occur. | While this results from the large quantities of chlorothalonil-containing pesticides sold, it is also due to the high chlorothalonil concentrations in such pesticides and to the high permitted maximum HCB concentrations (0.3 g/kg), in chlorothalonil as a technical active substance, that applied prior to 2000. Due to the revised data, changes in HCB quantities occur. | ||
- | The maximum HCB quantity for picloram, in the period under consideration, | + | The maximum HCB quantity for picloram, in the period under consideration, |
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- | The following chart give an overview of the emission trend of HCB (see Picture 1). HCB emissions were fully recalculated from 1987 onwards including atrazine, simazine, propazine and quintozine. HCB emissions are reported in the NFR tables beginning in 1990. | + | The following chart gives an overview of the emission trend of HCB (see Picture 1). HCB emissions were fully recalculated from 1987 onwards including atrazine, simazine, propazine and quintozine. HCB emissions are reported in the NFR tables beginning in 1990. |
HCB emissions are mainly dominated by the share of chlorothalonil. According to the BVL (2021a) ((BVL (2021a) (Bundesamts für Verbraucherschutz und Lebensmittelsicherheit Braunschweig): | HCB emissions are mainly dominated by the share of chlorothalonil. According to the BVL (2021a) ((BVL (2021a) (Bundesamts für Verbraucherschutz und Lebensmittelsicherheit Braunschweig): | ||
It is possible that the first " | It is possible that the first " | ||
- | The end of the EU active substance authorisation for chlorothalonil was later extended to 31.10.2018 and again to 31.10.2019, and with it the authorisations for the plant protection products in Germany. With the Implementing Regulation (EU) 2019/677 23), the BVL revoked the last three approvals for plant protection products containing chlorothalonil on 31 October 2019((cf. BVL; 2019: BVL - Fachmeldungen - Widerruf der Zulassung von Pflanzenschutzmitteln mit dem Wirkstoff Chlorthalonil zum 31. Oktober 2019. (2019, 31. Oktober). Abgerufen am September 2021, von https:// | + | The end of the EU active substance authorisation for chlorothalonil was later extended to 31.10.2018 and again to 31.10.2019, and with it the authorisations for the plant protection products in Germany. With the Implementing Regulation (EU) 2019/677 23), the BVL revoked the last three approvals for plant protection products containing chlorothalonil on 31 October 2019((cf. BVL; 2019: BVL - Fachmeldungen - Widerruf der Zulassung von Pflanzenschutzmitteln mit dem Wirkstoff Chlorthalonil zum 31. Oktober 2019. (2019, 31. Oktober). Abgerufen am September 2021, von https:// |
+ | )), the EU authorization (http:// | ||
//Picture 1: Annual trend of HCB emissions in Germany in the sector agriculture, | //Picture 1: Annual trend of HCB emissions in Germany in the sector agriculture, | ||
- | {{ : | + | |
+ | {{: | ||
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For the calculation of emissions consumption figures (i. e. statistical figures) are used. Therefore, a standard error of HCB content is assumed as 2.5 % for the emission inventory. The 95% confidence interval is therefore 5 %. A normal distribution is assumed. | For the calculation of emissions consumption figures (i. e. statistical figures) are used. Therefore, a standard error of HCB content is assumed as 2.5 % for the emission inventory. The 95% confidence interval is therefore 5 %. A normal distribution is assumed. | ||
- | The uncertainty for the emission factor was determined using the PELMO model. For this purpose, the applied amounts of HCB on the plant surface were calculated with a vapour pressure reduced by a factor of 10. In addition, the meteorological conditions for modelling were selected in such a way that a range of possible emission factors for different locations was distributed across Europe (from Porto, Portugal, to Jokioinen in Finland). This results in a minimum and maximum emission factor. The maximum range was 30 %; the arithmetic mean was 10 % uncertainty (personal communication, | + | The uncertainty for the emission factor was determined using the PELMO model. For this purpose, the applied amounts of HCB on the plant surface were calculated with a vapour pressure reduced by a factor of 10. In addition, the meteorological conditions for modelling were selected in such a way that a range of possible emission factors for different locations was distributed across Europe (from Porto, Portugal, to Jokioinen in Finland). This results in a minimum and maximum emission factor. The maximum range was 30 %; the arithmetic mean was 10 % uncertainty (personal communication, |
+ | active substances contained therein. | ||
===== Planned improvements ===== | ===== Planned improvements ===== | ||