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Background  Since 1990, every 5 years, moss sampling is conducted within the European moss monitoring programme to assess the atmospheric deposition of airborne pollutants. Besides many other countries, Germany takes regularly part at these evaluations. Within the European moss monitoring 2015, more than 400 moss samples across Germany were taken according to a harmonized methodology for the assessment heavy metal and nitrogen input. In a pilot programme, eight of these sites were chosen for additional investigations on a broad range of organic contaminants to evaluate their accumulation in moss and thereby their presence in atmospheric deposition in Germany. Target compound classes comprised polycyclic aromatic hydrocarbons (PAH), polychlorinated dibenzodioxins and –furans (PCDD/F), dioxin-like and non-dioxin-like polychlorinated biphenyls (dl-PCB, ndl-PCB), polyfluorinated alkyl substances,  classical  flame retardants as well as  emerging  chlorinated and brominated flame retardants. In total, 120 target compounds were analysed. For some analytes, comparisons of accumulation in moss and tree leave samples were possible.    Results  Except for certain flame retardants, PFAS, and ndl-PCB, substances of all other compound classes could be quantified in moss samples of all sites. Concentrations were highest for PAH (40–268 ng g −1 ) followed by  emerging  flame retardants (0.5–7.7 ng g −1 ), polybrominated diphenyl ethers (PBDE; 0.3–3.7 ng g −1 ), hexabromocyclododecane (HBCD; 0.3–1.2 ng g −1 ), dl-PCB (0.04–0.4 ng g −1 ) and PCDD/F (0.008–0.06 ng g −1 ).    Conclusions  Results show the widespread atmospheric distribution and deposition of organic contaminants across Germany as well as the suitability of moss as bioaccumulation monitor for most of these compound classes. Compared to nearby tree leaf samples, accumulation potential of moss appeared to be higher for pollutants of high octanol–air partition coefficient (K OA ) and octanol–water partition coefficient (K OW ).    Electronic supplementary material  The online version of this article (10.1186/s12302-018-0172-y) contains supplementary material, which is available to authorized users.

(Persistent) Organic pollutants in Germany: results from a pilot study within the 2015 moss survey