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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: Atmos Environ (1994). 2020 Aug 11;242:117818. doi: 10.1016/j.atmosenv.2020.117818

Table 3(b).

Winter (November-February) average individual PAH concentrations (ng/m3) at the Fresno central site for PAHyears 2003–2018.

PAHyear 2003 2007 2008 2009 2015 2016 2017 2018 Change (ng/m3) from 2003 to 2018 Change (%) from 2003 to 2018
N 32 20 81 99 29 29 18 20 - -
ACY 6.46 0.39 0.28 1.28 1.74 2.96 1.32 0.90 −5.56 −86%
ACE 2.41 1.68 0.66 0.63 1.67 1.26 0.57 0.60 −1.81 −75%
FLU 6.88 0.08 2.36 9.26 3.16 2.88 1.45 1.15 −5.73 −83%
PHE 17.67 11.93 8.08 11.18 5.46 6.05 4.38 2.27 −15.40 −87%
ANT 1.49 0.64 0.47 0.1 0.38 0.62 0.42 0.26 −1.23 −83%
FLT 3.71 2.26 1.77 1.42 1.54 2.01 1.73 0.47 −3.24 −87%
PYR 3.52 1.87 1.64 1.25 1.24 1.64 1.47 1.22 −2.30 −65%
RET 2.78 1.51 9.05 1.28 1.05 1.73 1.39 0.58 −2.20 −79%
BAA 1.42 0.68 0.49 0.19 0.41 0.88 0.70 0.07 −1.35 −95%
CHR 1.06 0.99 0.79 0.25 0.56 0.96 0.84 0.44 −0.62 −58%
BBF 1.58 0.48 0.96 0.38 0.92 1.62 1.26 0.12 −1.46 −92%
BKF 0.87 0.5 0.31 0.32 0.53 0.65 0.44 0.14 −0.73 −84%
BAP 1.67 0.88 0.59 0.18 0.58 0.95 0.89 0.08 −1.59 −95%
ICP 2.54 1.28 1.4 0.74 0.98 1.73 1.08 0.12 −2.42 −95%
DBA 0.69 0.23 0.44 0.18 0.64 0.49 0.31 0.03 −0.66 −96%
BGP 1.82 1.06 0.99 0.29 0.99 1.32 0.99 0.09 −1.73 −95%