Dust Monitoring

Westchester Environmental, LLC, provide dust level monitoring in the construction industry, offices, schools, homes and industries.

Employers have an ethical and legal duty to provide a safe and healthy working environment and ensuring compliance with the regulations. Regular monitoring also provides information on:

  • Existence of potential health hazards.
  • Possible sources and concentrations of airborne dust.
  • Extent of individual employee exposure to toxic substances.

Valid measurements are needed to determine if health hazards exist and dust controls are needed. The same sampling plan may not be suitable for every work and exposure environment; therefore, a sampling plan should be developed for each specific situation. The following are some of the important criteria for devising an appropriate sampling strategy:

  • Type and nature of contaminant.
  • Location of workers and nature of work operations.
  • Availability of sampling equipment.
  • Availability of sample analytical facilities.
  • Availability of personnel for survey.

For sampling purposes, employees who have apparent maximum potential exposure and also employees representative of other work operations will be sampled by ensuring the following:

  • Attaching a sampling device to the selected employees following OSHA Standard Methods.
  • Setting the sampling rate at 1.7 liters per minute.
  • Checking flow meter setting and sample collection frequently throughout the sampling period.
  • Performing a minimum total sampling time of 7 hours, unless the work-time is shorter.
  • Replacing the cartridge with a new one as deemed necessary (no overloading!).
  • Performing area sampling to determine effectiveness of engineering controls, if present.
  • Keeping at least one cassette as a blank, per day of sampling, by exposing it to the working environment and immediately resealing it. Air shall not be drawn through the blank.