LEEDS Chemical Allowance Limits

CO2 Monitoring	auto ventilation	above 800 ppm
	Chemical	Passing Concentration
LEEDS v4.0
1	Total Volatile Organic Compounds (TVOC)	500 ug/m3
2.	Formaldehyde	27 ppb 34 ug/m3
3.	PM 10	50 ug/m3
4.	Carbon Monoxide (CO)	9 ppm (also, no more than > 2ppm above outdoor levels)
5.	PM 2.5	15 ug/m3
6.	Ozone	75ppb
7.	Acetaldehyde	140 µg/m3
8.	Benzene	3 µg/m3
9.	Carbon disulfide	800 µg/m3
10.	Carbon tetrachloride	40 µg/m3
11.	Chlorobenzene	1000 µg/m3
12.	Chloroform	300 µg/m3
13.	Dichlorobenzene (1,4-)	800 µg/m3
14.	Dichloroethylene (1,1)	70 µg/m3
15.	Dimethylformamide (N,N-)	80 µg/m3
16.	Dioxane (1,4-)	3000 µg/m3
17.	Epichlorohydrin	3 µg/m3
18.	Ethylbenzene	2000 µg/m3
19.	Ethylene glycol	400 µg/m3
20.	Ethylene glycol monoethyl ether	70 µg/m3
21.	Ethylene glycol monoethyl ether acetate	300 µg/m3
22.	Ethylene glycol monomethyl ether	70 µg/m3
23.	Ethylene glycol monomethyl ether acetate	90 µg/m3
24.	Hexane (n-)	7000 µg/m3
25.	Isophorone	2000 µg/m3
26.	Isopropanol	7000 µg/m3
27.	Methyl chloroform	1000 µg/m3
28.	Methylene chloride	400 µg/m3
29.	Methyl t-butyl ether	8000 µg/m3
30.	Naphthalene	9 µg/m3
31.	Phenol	200 µg/m3
32.	Propylene glycol monomethyl ether	7000 µg/m3
33.	Styrene	900 µg/m3
34.	Tetrachloroethylene	35 µg/m3
35.	Toluene	300 µg/m3
36.	Trichloroethylene	600 µg/m3
37.	Vinyl acetate	200 µg/m3
38.	Xylenes, technical mixture	700 µg/m3
LEEDs v4.1 - 1 Point
		Passing Concentration
1.	Total Volatile Organic Compounds (TVOC)	500 ug/m3
2.	Formaldehyde	27 ppb 34 ug/m3
3.	PM 10 - For healthcare	50 ug/m3 20 ug/m3
4.	Carbon Monoxide (CO)	9 ppm (also, no more than > 2ppm above outdoor levels)
5.	PM 2.5 - Non-attainment areas	12 ug/m3 35 ug/m3
6.	Ozone	70 ppb
7.	Acetaldehyde	140 µg/m3
8.	Benzene	3 µg/m3
9.	Carbon disulfide	800 µg/m3
10.	Carbon tetrachloride	40 µg/m3
11.	Chlorobenzene	1000 µg/m3
12.	Chloroform	300 µg/m3
13.	Dichlorobenzene (1,4-)	800 µg/m3
14.	Dichloroethylene (1,1)	70 µg/m3
15.	Dimethylformamide (N, N-)	80 µg/m3
16.	Dioxane (1,4-)	3000 µg/m3
17.	Epichlorohydrin	3 µg/m3
18.	Ethylbenzene	2000 µg/m3
19.	Ethylene glycol	400 µg/m3
20.	Ethylene glycol monoethyl ether	70 µg/m3
21.	Ethylene glycol monoethyl ether acetate	300 µg/m3
22.	Ethylene glycol monomethyl ether	70 µg/m3
23.	Ethylene glycol monomethyl ether acetate	90 µg/m3
24.	Hexane (n-)	7000 µg/m3
25.	Isophorone	2000 µg/m3
26.	Isopropanol	7000 µg/m3
27.	Methyl chloroform	1000 µg/m3
28.	Methylene chloride	400 µg/m3
29.	Methyl t-butyl ether	8000 µg/m3
30.	Naphthalene	9 µg/m3
31.	Phenol	200 µg/m3
32.	Propylene glycol monomethyl ether	7000 µg/m3
33.	Styrene	900 µg/m3
34.	Tetrachloroethylene	35 µg/m3
35.	Toluene	300 µg/m3
36.	Trichloroethylene	600 µg/m3
37.	Vinyl acetate	200 µg/m3
38.	Xylenes, technical mixture	700 µg/m3
LEEDs v4.1 LEEDs - 2 Point
		Passing Concentration
1.	Total Volatile Organic Compounds (TVOC)	500 ug/m3
2.	Formaldehyde	16 ppb 20 ug/m3
3.	PM 10 - For healthcare	50 ug/m3 20 ug/m3
4.	Carbon Monoxide (CO)	9 ppm (also, no more than > 2ppm above outdoor levels)
5.	PM 2.5 - Non-attainment areas	12 ug/m3 35 ug/m3
6.	Ozone	70 ppb
7.	Acetaldehyde	140 µg/m3
8.	Benzene	3 µg/m3
9.	Carbon disulfide	800 µg/m3
10.	Carbon tetrachloride	40 µg/m3
11.	Chlorobenzene	1000 µg/m3
12.	Chloroform	300 µg/m3
13.	Dichlorobenzene (1,4-)	800 µg/m3
14.	Dichloroethylene (1,1)	70 µg/m3
15.	Dimethylformamide (N,N-)	80 µg/m3
16.	Dioxane (1,4-)	3000 µg/m3
17.	Epichlorohydrin	3 µg/m3
18.	Ethylbenzene	2000 µg/m3
19.	Ethylene glycol	400 µg/m3
20.	Ethylene glycol monoethyl ether	70 µg/m3
21.	Ethylene glycol monoethyl ether acetate	300 µg/m3
22.	Ethylene glycol monomethyl ether	70 µg/m3
23.	Ethylene glycol monomethyl ether acetate	90 µg/m3
24.	Hexane (n-)	7000 µg/m3
25.	Isophorone	2000 µg/m3
26.	Isopropanol	7000 µg/m3
27.	Methyl chloroform	1000 µg/m3
28.	Methylene chloride	400 µg/m3
29.	Methyl t-butyl ether	8000 µg/m3
30.	Naphthalene	9 µg/m3
31.	Phenol	200 µg/m3
32.	Propylene glycol monomethyl ether	7000 µg/m3
33.	Styrene	900 µg/m3
34.	Tetrachloroethylene	35 µg/m3
35.	Toluene	300 µg/m3
36.	Trichloroethylene	600 µg/m3
37.	Vinyl acetate	200 µg/m3
38.	Xylenes, technical mixture	700 µg/m3
LEEDs v4.1 - 3 Point
		Passing Concentration
1.	Total Volatile Organic Compounds (TVOC)	500 ug/m3
2.	Formaldehyde	16 ppb 20 ug/m3
3.	PM 10 - For healthcare	50 ug/m3 20 ug/m3
4.	Carbon Monoxide (CO)	9 ppm (also, no more than > 2ppm above outdoor levels)
5.	PM 2.5 - Non-attainment areas	12 ug/m3 35 ug/m3
6.	Ozone	70 ppb
7.	Acetaldehyde	70 µg/m3
8.	Benzene	1.5 µg/m3
9.	Carbon disulfide	400 µg/m3
10.	Carbon tetrachloride	20 µg/m3
11.	Chlorobenzene	500 µg/m3
12.	Chloroform	150 µg/m3
13.	Dichlorobenzene (1,4-)	400 µg/m3
14.	Dichloroethylene (1,1)	35 µg/m3
15.	Dimethylformamide (N,N-)	30 µg/m3
16.	Dioxane (1,4-)	1500 µg/m3
17.	Epichlorohydrin	1.5 µg/m3
18.	Ethylbenzene	1000 µg/m3
19.	Ethylene glycol	200 µg/m3
20.	Ethylene glycol monoethyl ether	35 µg/m3
21.	Ethylene glycol monoethyl ether acetate	150 µg/m3
22.	Ethylene glycol monomethyl ether	30 µg/m3
23.	Ethylene glycol monomethyl ether acetate	45 µg/m3
24.	Hexane (n-)	3500 µg/m3
25.	Isophorone	2000 µg/m3
26.	Isopropanol	7000 µg/m3
27.	Methyl chloroform	500 µg/m3
28.	Methylene chloride	200 µg/m3
29.	Methyl t-butyl ether	4000 µg/m3
30.	Naphthalene	4.5 µg/m3
31.	Phenol	100 µg/m3
32.	Propylene glycol monomethyl ether	3500 µg/m3
33.	Styrene	450 µg/m3
34.	Tetrachloroethylene	17.5 µg/m3
35.	Toluene	150 µg/m3
36.	Trichloroethylene	300 µg/m3
37.	Vinyl acetate	100 µg/m3
38.	Xylenes, technical mixture	300 µg/m3