Determination of Mercury Exposure among Dental Health Workers in Nakhon Si Thammarat Province, Thailand

Table 2

Environmental mercury vapor samplings and percentage of mercury airborne levels exceeded (% OELs).

Personal and area samplings		µg/m^3 TWA
		Mean	Median	Min	Max	Number of mercury airborne levels exceeded; (% OELs)
Chairs	24	9.42	5.70	0.20	31.10	2 (8.3)
Amalgam storages	17	19.28	18.00	10.00	29.00	6 (35.3)
Preparation areas	17	8.88	10.50	0.70	20.50	2 (11.8)
Total areas samplings	58	8.58	6.40	0.20	29.00	10/58 (17.3)
Personal air samplings	124	15.60	12.20	2.00	38.00	22/124 (17.7)