Landfills and waste water treatment plants as sources of ... - GKSS

STUDY 1: LANDFILLS AS SOURCES
4.3.2 Air concentrations of musk fragrances in the gas- and particle phase
Musk fragrances in the gas phase were detected in all air samples. Figure 13 demonstrates
musk fragrance concentrations at landfill sites and their corresponding RFs. Individual
concentrations of musk fragrances are given in the supporting information. Musk fragrance
concentrations at landfill LA ranged from146 (LA3) to 990 pg m -3 (LA1). In corresponding
RF, these compounds were observed at 47 (RF9) and 84 pg m -3 (RF8). Concentrations at LB
were observed from 579 (LB5) to 1947 pg m -3 (LB2). Concentrations of musk fragrances
taken in air samples at RF simultaneously ranged from 50 to 1016 pg m -3 . HHCB and AHTN
were the only compounds detected in all air samples. ADBI was only occasionally observed
(LA1, LA3, LA4, and RF20). AHMI was only detected in sample LA4 (8 pg m -3 ). ATII as
well as both nitro musks were not observed in one of the samples. The average proportions in
gas-phase samples were 85 % (HHCB) and 14 % (AHTN). Proportions of all gas phase
samples from landfills and corresponding RF are displayed in figure 14.
Musk fragrances in the particle phase were constantly detected in samples from LB and its
corresponding RF. LA samples were not contaminated with musk fragrances. In samples RF9
and RF10 musk fragrances were observed. Sum concentrations at LB and its RF ranged from
3 to 103 pg m -3 . Sum concentrations in RF9 and RF10 were of 20 and 30 pg m -3 , respectively.
HHCB and AHTN were the only observed substances bound to particles. The proportions
were dominated by AHTN (60 % or even higher) in the majority of particle phase samples. In
samples LB3 and RF20 proportion of HHCB succeeds those of AHTN. In samples RF9 and
LB4 ratios of AHTN and HHCB are quite similar.
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