Dynamic Modeling and Target Loads of Sulfur and Nitrogen for Surface Waters in Finland, Norway, Sweden, and the United Kingdom

15898 9 87522 3 248734 document 87522 Posch_etal_final_ES&T-2019.pdf application/pdf f2704a2429d3711649eab4f9ee6f91a6 MD5 1620273 2019-05-09 11:57:37 https://pure.iiasa.ac.at/id/eprint/15898/1/Posch_etal_final_ES%26T-2019.pdf 15898 1 1 application/pdf text en public cc_by_nc_4

Posch_etal_final_ES&T-2019.pdf

accepted 87523 2 248737 document 87523 lightbox.jpg image/png 66dd8ace57e8ef8a8d8fe58e6e777651 MD5 38379 2019-05-09 11:57:58 https://pure.iiasa.ac.at/id/eprint/15898/2/lightbox.jpg 15898 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en staffonly

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/87522 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/87522 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/87522 archive 353 disk0/00/01/58/98 2019-05-07 05:44:39 2021-08-27 17:31:45 2019-05-07 05:44:39 article show Posch M. 6733 0000-0001-8649-9129 Aherne J. Moldan F. Evans C.D. Forsius M. Larssen T. Helliwell R. Cosby B. Dynamic Modeling and Target Loads of Sulfur and Nitrogen for Surface Waters in Finland, Norway, Sweden, and the United Kingdom pub prog_air The target load concept is an extension of the critical load concept of air pollution inputs to ecosystems. The advantage of target loads over critical loads is that one can define the deposition and the point in time (target year) when the critical (chemical) limit is no longer violated. This information on the timing of recovery requires dynamic modeling. Using a well-documented dynamic model, target loads for acidic deposition were determined for 848 surface waters across Finland, Norway, Sweden, and the United Kingdom for the target year 2050. In the majority of sites (n = 675), the critical ANC-limit was predicted to be achieved by 2050; however, for 127 sites, target loads were determined. In addition, 46 sites were infeasible, i.e., even a reduction of anthropogenic deposition to zero would not achieve the limit by 2050. The average maximum target load for sulfur was 38% lower than the respective critical load across the study lakes (n = 127). Target loads on a large regional scale can inform effects-based emission reduction policies; the current assessment suggests that reductions beyond the Gothenburg Protocol are required to ensure surface water recovery from acidification by 2050. 2019-03-29 published American Chemical Society (ACS) 10.1021/acs.est.8b06356 3069 public Environmental Science & Technology 53 9 5062-5070 TRUE 1520-5851 FALSE no info:eu-repo/semantics/article