Table 1.

Toxicity characteristics and use of specific organophosphate and carbamate pesticides in the Salinas Valley in 2000

Pesticide	BMD10	RPF	Actual		Toxicity Weighted
			Kg	Percent of Total	Kg	Percent of Total
Organophosphates
DiazinonDEP	9.62	0.16	55924	22.5%	8720	0.7%
MalathionDMP	212.02	0.01	45606	18.4%	323	0.0%
Acephate	0.77	1.95	33526	13.5%	65310	5.6%
ChlorpyrifosDEP	1.50	1.00	26630	10.7%	26630	2.3%
Oxydemeton-methylDMP	0.07	21.43	27754	11.2%	594727	50.7%
DimethoateDMP	0.35	4.29	16115	6.5%	69064	5.9%
Bensulide	40.88	0.04	17409	7.0%	639	0.1%
NaledDMP	1.00	1.50	9298	3.7%	13947	1.2%
DisulfotonDEP	0.10	15.00	5763	2.3%	86440	7.4%
MethidathionDMP	0.24	6.25	6926	2.8%	43287	3.7%
Methamidophos	0.07	21.43	619	0.2%	13260	1.1%
Ethoprop	1.35	1.11	472	0.2%	524	0.0%
Azinphos-methylDMP	1.14	1.32	101	0.0%	133	0.0%
Fenamiphos	1.73	0.87	1114	0.4%	966	0.1%
PhosmetDMP	4.15	0.36	909	0.4%	328	0.0%
N-Methyl Carbamates
Methomyl	0.36	4.17	34815	61.1%	145062	40.8%
Carbofuran	0.10	15.00	7271	12.8%	109072	30.7%
Carbaryl	1.21	1.24	9169	16.1%	11366	3.2%
Thiodicarb	0.27	5.56	2227	3.9%	12375	3.5%
Oxamyl	0.24	6.25	3319	5.8%	20741	5.8%
Methiocarb	1.31	1.15	170	0.3%	194	0.1%
Aldicarb	0.06	25.00	2	<0.1%	38	<0.1%

BMD₁₀ = Benchmark dose estimated to result in 10% male rat brain AChE inhibition; RPF = Relative potency factor; Kg = kilogram

^DEPDiethyl organophosphate pesticide

^DMPDimethyl organophosphate pesticide