TABLE 2.

Detection results for eight chemicals with DIER and YES bioassays^a

Strain	Chemical	Limit of detection (g/liter)	Linear scope (g/liter)	Relative estrogenic activity	Estradiol equivalency factor	Estrogenic activity
DIER	17-β-Estradiol	10−10	10−10-10−1	1.0	1.0	Strong
	BPA	10−10	10−10-10−2	10−4	1.2 × 10−4	Strong
	Chrysene	10−7	10−6-10−1	10−4	0.98 × 10−4	Moderate
	6-OH-chrysene	10−6	10−6-10−1	10−5	1.4 × 10−5	Moderate
	Benz[a]anthracene	NDb	ND	ND	ND	Weak
	Pyrene	ND	ND	ND	ND	Weak
	Progesterone	ND	ND	ND	ND	No
	Testosterone	ND	ND	ND	ND	No
BJ3505	17-β-Estradiol	10−10	10−10-10−1	1.0	1.0	Strong
	BPA	10−10	10−10-10−1	10−4	1.7 × 10−4	Strong
	Chrysene	10−6	10−5-10−1	10−4	1.13 × 10−4	Moderate
	6-OH-chrysene	10−6	10−6-10−2	10−5	1.1 × 10−5	Moderate
	Benz[a]anthracene	ND	ND	ND	ND	Weak
	Pyrene	ND	ND	ND	ND	Weak
	Progesterone	ND	ND	ND	ND	No
	Testosterone	ND	ND	ND	ND	No

^aValues represent data from seven separate experiments.

^bND, not detected (when relative β-galactosidase activity is lower than 0.1).