Table 1: Observed PAHs concentration by creek sediment particle sizes and associated standard deviation (all samples combined).

PAHMean concentration (μg/kg) (standard deviation)
<45 μm45–90 μm90–180 μm180–355 μm355–710 μm710–1400 μm1400–2800 μm>2800 μm (w/o LOM*)>2800 μm LOM

Naphthalene255 (275)177 (156)163 (224)94 (87)124 (131)790 (2046)891 (2014)124 (74)2637 (2107)
Fluorene257 (295)189 (134)225 (187)125 (135)139 (140)196 (144)293 (173)216 (161)1771 (945)
Phenanthrene264 (278)205 (211)140 (158)92 (92)110 (85)130 (136)197 (230)188 (164)2007 (1422)
Anthracene354 (397)288 (273)261 (253)152 (150)182 (182)366 (314)491 (614)218 (152)2255 (1089)
Fluoranthene650 (868)624 (753)345 (372)202 (242)247 (336)259 (237)237 (197)191 (173)1520 (902)
Pyrene653 (738)519 (548)412 (577)175 (174)240 (405)207 (153)192 (122)172 (129)2054 (954)
Benzo(a)anthracene501 (595)408 (537)258 (286)169 (171)224 (229)167 (134)271 (252)278 (371)2164 (1045)
Chrysene591 (618)602 (689)363 (363)202 (199)273 (268)190 (125)296 (242)171 (130)1810 (852)
Benzo(b)fluoranthene597 (522)517 (598)358 (389)402 (671)227 (150)316 (262)375 (369)329 (375)2179 (1425)
Benzo(a)pyrene1474 (2210)1524 (3079)662 (459)434 (513)351 (210)502 (533)1119 (2086)392 (255)2330 (1866)
Indeno(1,2,3-cd)pyrene787 (544)657 (538)942 (794)258 (187)332 (189)576 (774)706 (917)357 (424)1774 (933)
Dibenz(a,h)anthracene1267 (1864)787 (1022)675 (545)276 (234)355 (226)687 (511)835 (1254)286 (191)1492 (775)
Benzo(g,h,i)perylene706 (686)465 (451)591 (691)199 (226)174 (116)551 (567)396 (299)348 (229)2236 (1728)

*Sediment size fraction organic material removed.