Skip to main content

Table 3 The concentration (μg/m3) of odor compounds in the boundary compared with TLV and the limit value of China

From: Gaseous pollutants from a small-scale aerobic biological treatment facility: odor and health risk assessment

Compound

TLVa

Limit valueb

Location

Upwind-A

Downwind-A

Upwind-B

Downwind-B

Ammonia

18,973

1970

 < 300

 < 300

 < 300

 < 300

Hydrogen sulfide

15,178

37

ND

17.9

6.2

5.8

Methyl mercaptan

1071

3

ND

ND

ND

ND

Carbon disulfide

3392

884

ND

23.8

ND

ND

Dimethyl sulfide

27,678

25

ND

1.3

0.9

ND

Dimethyl disulfide

2098

15

ND

ND

ND

ND

Styrene

92,857

1077

15.7

7.7

0.5

11.7

  1. aTLV, threshold limit value, the value was time weighted average concentration for a normal 8-h workday and reflected the level of exposure that the typical worker can experience without an unreasonable risk of disease or injury; the data come from “American Conference of Governmental Industrial Hygienists (ACGIH)”
  2. bLimit value, Emission Standards For Odor Pollutants (China, GB 14554–93); ND, not detected; “A” in x axis represents sampling without waste unloading and sorting operation; “B” represents sampling during waste unloading and sorting operation