Preliminary Study: Environmental Assessment of Perchloroethylene in Dry-Cleaning Facilities in the UAE

Table 2

Comparison of the concentration of PERC (in ppm) from each dry-cleaning facility with the International Standards and UAE Standards.

Dry-cleaning facility A	ACGIH STEL: 100 ppm (as a 15 min TWA)	OSHA ceiling: 200 ppm (for 5 min in any 3 h period).	UAE Standards (AD EHSMS RF STEL): 100 ppm.
Position 1: 7.71–9	Below limit	Below limit	Below limit
Position 2: 150–200	Above limit	Max. concentration on boundaries	Above limit
Position 3: 10–18	Below limit	Below limit	Below limit
Dry-cleaning facility B	ACGIH STEL: 100 ppm (as a 15 min TWA)	OSHA ceiling: 200 ppm (for 5 min in any 3 h period)	AD EHSMS RF STEL: 100 ppm
Position 1: 10–75	Below limit	Below limit	Below limit
Position 2: 51–63	Below limit	Below limit	Below limit
Position 3: 7–8.4	Below limit	Below limit	Below limit
Dry-cleaning facility C	ACGIH STEL: 100 ppm (as a 15 min TWA)	OSHA ceiling: 200 ppm (for 5 min in any 3 h period)	AD EHSMS RF STEL: 100 ppm
Position 1: 4–10	Below limit	Below limit	Below limit
Position 2: 60–510	Max. concentration above limit	Max. concentration above limit	Max. concentration above limit
Position 3: 3–8.4	Below limit	Below limit	Below limit
Dry-cleaning facility D	ACGIH STEL: 100 ppm (as a 15 min TWA)	OSHA ceiling: 200 ppm (for 5 min in any 3 h period)	AD EHSMS RF STEL: 100 ppm.
Position 1: 2.72–3.38	Below limit	Below limit	Below limit
Position 2: 60–240	Max. concentration above limit	Max. concentration above limit	Max. concentration above limit
Position 3: 1.15–2.33	Below limit	Below limit	Below limit