The regulatory authority that establishes noise limits specifically for the protection of workers in industrial areas is the Occupational Safety and Health Administration (OSHA).
When discussing "noise limits in industrial areas," it often refers to two main aspects:
While environmental agencies (like the EPA or state/local environmental departments) address the latter, OSHA directly and explicitly establishes and enforces the legally binding noise limits for worker safety *within* industrial environments. OSHA's noise standard (29 CFR 1910.95) mandates that employers implement a hearing conservation program if noise exposure levels reach or exceed an 8-hour time-weighted average (TWA) of 85 dBA, and sets a PEL of 90 dBA TWA for 8 hours.
Given the options, and the direct regulatory power to establish and enforce noise exposure limits for individuals working *in* industrial areas, Occupational Safety and Health Administration (OSHA) is the most accurate answer.
Consider the following statements:
(i) Environmental pollutant concentration is generally modeled using lognormal distribution.
(ii) Environmental pollutant concentration is generally modeled using Poisson distribution.
(iii) The weekly rate of exceedance of environmental pollutant concentration with regards to a given standard is generally modeled using lognormal distribution.
(iv) The weekly rate of exceedance of environmental pollutant concentration with regards to a given standard is generally modeled using Poisson distribution.
Choose the correct option(s) from the following: