Monthly Bulb Crushing Duration (X Hours/Month)* | Chronic Exposure Air Emission Limit (µg/m3) | Acute Exposure Air Emission Limit (µg/m3) |
X = 32 | 1.314skin µg/m3 | 300 µg/m3 |
8 < X < 32 | 6.317 skin µg/m3 | 300 µg/m3 |
X = 8 | 27.375 skin µg/m3 | 300µg/m3 |
X = 2 and no more than 220 lbs/month or 100 kg/month of bulbs crushed | Monitoring not required | Monitoring not required |
*Monthly crushing duration is determined based on the maximum number of hours that bulb crushing occurred in any one month over the last 12-month period. |
9 Va. Admin. Code § 20-60-1505
Statutory Authority: § 10.1-1402 of the Code of Virginia; 42 USC § 6921 et seq.; 40 CFR Parts 260 through 272.