Also in: Disaster Response and Recovery
UV Dose and Target Check
Delivered UV dose, checked against a validated target.
Example
You enter
- UV intensity (mW/cm²) 10
- Exposure time (s) 5
- Target dose (mJ/cm²) 40
You get
- Delivered dose 50.0 mJ/cm^2
- Meets Yes
Checked against published worked examples from: U.S. Army Public Health Command.
Details, formula, and sources
ScopeThe delivered ultraviolet dose (intensity x exposure time, mW.s/cm^2 = mJ/cm^2) checked against a validated target (default 40 mJ/cm^2). A short dose points to an aged lamp, a fouled sleeve, or low UV transmittance. USEPA UV Disinfection Guidance; the validated reactor dose and the state primacy agency govern compliance.
Formula or tabledose_mj_cm2 = intensity_mw_cm2 x exposure_time_s (mW.s/cm^2 = mJ/cm^2); meets the target if dose >= target_dose (default 40 mJ/cm^2), else short.
Source and editionUSEPA UV Disinfection Guidance Manual (EPA 815-R-06-007) by name; dose = intensity x time, no edition cycle.
Free accessThe dose relation is public; the validated reactor dose and the state primacy agency govern compliance.
What governsEstimate. Operator of record and primacy agency govern.
API field namesintensity_mw_cm2, exposure_time_s, target_dose_mj_cm2, dose_mj_cm2, meets
- Units mW.s/cm^2 equals mJ/cm^2; dose is the time integral of intensity, here intensity x timeUSEPA UVDGM
- Target a common validated target is 40 mJ/cm^2, editable to the validated reactor doseUSEPA UVDGM
- Short dose a short dose points to an aged lamp, a fouled sleeve, or low UV transmittance (turbidity)USEPA UVDGM