• Bldg. 2 and 1/F Bldg. 2A, Berthaphil Compound 1, Jose Abad Santos Ave., Clark Freeport Zone

Air Quality Monitoring

WEM/IAQ Monitoring

Work Environment Measurement or Industrial Hygiene (WEM or IH), Indoor Air Quality (IAQ) Testing & Indoor Environmental Quality (IEQ) Testing

  • Chemical Parameters (dusts & fibers, metals, organic solvents, acids, gases)
  • Biological Parameters (total bacteria)
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The quality of the work environment and indoor air quality is a critical concern for employees and employers in the Philippines. Poor air quality can have a significant impact on the health and productivity of workers, while a healthy work environment can lead to higher job satisfaction and improved performance. To address this issue, the Department of Labor and Employment (DOLE) has established regulations and guidelines for the measurement of the work environment and indoor air quality in the country.

The guidelines specify the acceptable levels of various pollutants and other factors that affect the quality of the work environment, such as temperature, humidity, and lighting. Employers are required to conduct regular measurements of the work environment and indoor air quality to ensure that they are within acceptable levels. The measurements should be conducted by trained personnel using appropriate equipment and methods. The data collected should be analyzed and used to identify any potential health hazards or areas for improvement. In addition to complying with government regulations, employers should also take proactive steps to improve the work environment and indoor air quality. This can include measures such as proper ventilation, regular cleaning and maintenance of air conditioning and heating systems, and minimizing the use of chemicals and other pollutants in the workplace.

Overall, ensuring a healthy work environment and indoor air quality is essential for the well-being of employees and the success of businesses in the Philippines. By following government regulations and implementing best practices, employers can create a safe and productive work environment that benefits everyone.

Continuous Emission Monitoring Systems Audit (RATA, RAA, CGA)

Parameter Test Reference
Pollutants (SO2, NOx, CO, H2S) 40 CFR Part 60, Appendix F
Diluent (O2, CO2) 40 CFR Part 60, Appendix F

Parameter Test Reference
Sulfur Dioxide (SO2) 40 CFR 60, Appendix F, US EPA PS-2 (Method 6)
Nitrogen Oxides (NOx) 40 CFR 60, Appendix F, US EPA PS-2 (Method 7E)
Carbon Dioxide (CO2) 40 CFR 60, Appendix F, US EPA PS-3 (Method 3A)
Oxygen (O2) 40 CFR 60, Appendix F, US EPA PS-3 (Method 3A)
Carbon Monoxide (CO) 40 CFR 60, Appendix F, US EPA PS-4/4A (Method 10)
Hydrogen Sulfide(H2S) 40 CFR 60, Appendix F, US EPA PS-7 (Method 11)

Work Environment Measurement or Industrial Hygiene (WEM or IH)

Parameter Test Reference
[illumination, noise, heat, temperature, relative humidity] Direct readout instrumentation

Parameter Test Reference
[General Ventilation: air velocity, air change, air supply Local Exhaust Ventilation: face velocity, capture velocity] Direct readout instrumentation

Parameter Test Reference

Dusts & Fibers: total nuisance dust (TND), total respirable dust (TRD), crystalline silica dusts, alkaline dusts, carbon black, asbestos

Metals: aluminum, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, chromium, cobalt, copper, ferric oxide, gallium, gold, indium, iron, lanthanum, lead, lithium, magnesium, manganese, mercury, molybdenum, neodymium, nickel, palladium, phosphorus, platinum, potassium, selenium, silver, sodium, strontium, tellurium, thallium, tin, titanium, tungsten, vanadium, yttrium, zinc, zirconium, hexavalent chromium

Organic Solvents: TVOC, acetone, benzene, butyl acetate, ethanol, ethyl acetate, ethylbenzene, formaldehyde, gasoline, hexane, isopropyl alcohol, kerosene, methanol, methyl ethyl ketone, methylene chloride, toluene, xylenes

Note: refer to WEM, IH & IAQ Technical Guidebook for complete list of organic solvents / organic vapors / volatile organic compounds

Acids: hydrogen chloride, phosphoric acid, hydrogen bromide, nitric acid, sulfuric acid, hydrogen fluoride, acetic acid, acrylic acid, formic acid

Gases: ammonia, carbon dioxide, carbon monoxide, chlorine, cyanide, hydrogen sulfide, methane, nitrogen dioxide, oxygen, sulfur dioxide, LEL

Others: oil mist, ozone 		NIOSH, OSHA, and MASA Methodologies

Parameter Test Reference

[total bacteria, total fungi (as yeasts and molds)]

 NIOSH 0800 / NIOSH 0801

Parameter Test Reference

[total bacteria, total fungi (as yeasts and molds)]

 NIOSH 0800 / NIOSH 0801

Indoor Air Quality Testing (IAQ Testing)

Parameter Test Reference
Air Temperature Direct readout instrumentation
Relative Humidity Direct readout instrumentation
Air Movement Direct readout instrumentation
Carbon Dioxide Direct readout instrumentation
Carbon Monoxide Direct readout instrumentation
Formaldehyde NIOSH 3500 [adapted]
Total Volatile Organic Compounds (TVOC) Direct readout instrumentation
Respirable Suspended Particles (Total Respirable Dust, TRD) NIOSH 0600 [adapted]
Particulate Matter 2.5 microns (PM2.5) SKC IP10A/10B
Total Viable Bacterial Count (total bacteria) NIOSH 0800 / NIOSH 0801

Indoor Environmental Quality Testing (IEQ Testing)

Parameter Test Reference
Air Temperature Direct readout instrumentation
Relative Humidity Direct readout instrumentation
Air Movement Direct readout instrumentation

Parameter Test Reference
Carbon Dioxide Direct readout instrumentation
Carbon Monoxide Direct readout instrumentation
Formaldehyde NIOSH 3500 [adapted]
Total Volatile Organic Compounds (TVOC) Direct readout instrumentation
Respirable Suspended Particles (Total Respirable Dust, TRD) NIOSH 0600 [adapted]
Particulate Matter 2.5 microns (PM2.5) EPA IP10A/10B
Total Viable Bacterial Count (total bacteria) NIOSH 0800 / NIOSH 0801

Parameter Test Reference
illumination Direct readout instrumentation

Parameter Test Reference
Noise Direct readout instrumentation

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