Skip to main content

Table 5 RfC values of odor compounds for calculating hazard quotients in this exposure scenario

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

Family

Compound

Classification

Critical effect system

RfC (mg/m3)

 

Ammonia

Respiratory

5 × 10–1

VFAs

Acetic acid

Propionic acid

Isobutyric acid

Butanoic acid

Isovaleric acid

Alcohols

Methanol

Nervous

2 × 101

Ethanol

Propanol

n-Butanol

2-Butanol

Isobutanol

3-Pentanol

2-Pentanol

Aromatics

Benzene

A

Immune(lymphocyte decreased)

3 × 10–2

Toluene

D

Nervous

5.00

Ethylbenzene

D

Hepatic, urinary

1.00

p-Xylene

Nervous

1.00 × 10–1

m-Xylene

Nervous

1.00 × 10–1

o-Xylene

Nervous

1.00 × 10–1

Styrene

Nervous

1.00

Carbonyls

Formaldehyde

B1

Squamous cell carcinomas

Acetaldehyde

B2

Respiratory

9 × 10–3

Acrolein

Respiratory and peripheral

2 × 10–5

Butyraldehyde

Benzaldehyde

Acetone

Pentanone

RSCs

Hydrogen sulfide

Nervous, respiratory

2.00 × 10–3

Carbonyl sulfide

Methyl mercaptan

Ethyl mercaptan

Dimethyl sulfide

Carbon disulfide

Nervous(peripheral nervous system dysfunction)

7.00 × 10–1

Propyl mercaptan

Thiophene

Diethyl sulfide

Dimethyl disulfide

Diethyl disulfide

Dimethyl trisulfide

Terpenes

α-Pinene

β-Pinene

(+)-3-Carene

D-Limonene

Cineole

α-Terpinene

γ-Terpinene

p-Cymene

  1. Carcinogenic classification method from weight-of-evidence of IRIS; A, carcinogenic to human; B1, possible carcinogen; B2, probable carcinogen; C, carcinogenicity to human body has not been classified; D, may not be carcinogenic; –, not available.