data points median Cestimated/Cmeasured Pearson’s correlation coefficient logCestimated vs logCmeasured linear regression slope logCestimated vs logCmeasured Aqueous Concentration Estimates         Figure 1a estimates based on eq 1 204 8 0.90 0.88 log(Caq) = − 0.74·log(KOW) −  0.15 − log(fOC) + log(CS)         Figure 1b estimates based on eqs 5 and 6 166 1/4 0.93 1.26 Cs =  (fOC − fBC)KAOCCaq + fBCKFr,BCCaq0.7         log(KFr,BC) = 0.980*log(KOW) − 2.209         Figure 3a estimates based on eqs 5, 9 and 10a 166 1 0.94 0.93 Cs =  (fOC − fBC)KAOCCaq + fBCKBC,linCaq         log(KBC,lin) = 0.912·log(KOW) + 1.370         log(KAOC) = 0.74·log(KOW) + 0.15         Biolipid Concentration Estimates         Figure 2a estimates based on eq 3 157 33 0.83 0.85 log(Clipid) = 0.17·log(KOW) + 0.35 − log(fOC) + log(CS)         Figure 2b estimates based on eqs 5, 6 and 7 138 1/6 0.93 1.38 Cs =  (fOC − fBC)KAOCCaq + fBCKFr,BCCaq0.7         log(KFr,BC) = 0.980·log(KOW) − 2.209         Clipid ≈ KLIP· Caq         Figure 2c estimates based on eq 4 99 1 0.90 1.04 log(Clipid) = 0.912·log(f6h) + 0.835         Figure 2d estimates based on eq 2 135 1 0.84 0.97 log(Clipid) = 0.91·log(KOW) + 0.50 + log(Caq)         Figure 3b estimates based on eqs 5, 9, 10a and (2) 138 1 0.92 0.98 Cs =  (fOC − fBC)KAOCCaq + fBCKBC,linCaq         log(KBC,lin) = 0.912·log(KOW) + 1.370         log(KAOC) = 0.74·log(KOW) + 0.15         log(Clipid) = 0.91·log(KOW) + 0.50 + log(Caq)