Air Quality Laboratories, Inc.

INDUSTRIAL HYGIENE SERVICES

Industrial hygiene air monitoring plays an important role in the evaluation of potential employee exposure to hazardous materials in the workplace. Monitoring can be personal monitoring to measure an employee's exposure to airborne contaminants for comparison to OSHA PELs or other TLVs developed by safety and health experts and organizations. Monitoring can also be area monitoring where exposure is measured not in terms of a particular employee, but rather as ambient air concentration of a substance. Monitoring provides data for a given area at a given period of time. Area monitoring is a useful technique to help evaluate the need to improve contaminant control procedures.

AQL will work with you to develop a sampling strategy that will meet the objectives of the monitoring study. For example, it may be decided to evaluate a "worst case" condition because it was likely that the longest exposure times to the highest expected concentrations would be less than any applicable exposure limits. If tested concentrations support the theory there is now some assurances that other conditions with shorter exposure times will have lower level exposures. The sampling strategy and study objectives will determine:

  - WHAT TO SAMPLE FOR      

  - HOW TO SAMPLE

  - WHERE TO SAMPLE

  - WHOM TO SAMPLE

  - WHEN TO SAMPLE

  - HOW LONG TO SAMPLE

  - HOW MANY SAMPLES TO TAKE

All sampling and project management is performed by a Certified Safety Professional (CSP).

AQL sampling procedures ensure that the proper sampling media is used for the contaminants of concern and the sample is collected using calibrated equipment operated at the method prescribed flow rate and times.

AQL has technical competence in chemical testing and meets the requirements of ISO 17025.  Labs used for subcontract services are AIHA or A2LA accredited.

Whatever your sampling and testing needs; particulates, metals, or organics - contact AQL for a detailed evaluation and proposal / quotation.

The welding environment is very complex.  Contaminants that occur within the process and in the surrounding area include fumes and gases.  Which contaminants are present and their quantity are a function of  the welding process and the process variables, the type of consumables and base materials that are used, and any surface preparation of the base material.  The effects on the welding personnel from these contaminants can range from a nuisance to severe toxicity.  The various chemicals that are most often encountered in common welding processes include:

Aluminum, Beryllium, Cadmium, Chromium, Copper, Iron Oxide, Lead, Manganese, Molybdenum, Nickel Zinc/Zinc Oxide, Fluorides, Carbon Monoxide, Ozone, Nitrogen Oxide, Phosgene 

In addition, the following physical agents can present safety and health concerns during welding operations:

Ultraviolet Radiation, Infrared Radiation, Intense Visible Light

To sample and analyze for all of these contaminants is difficult, expensive and generally unnecessary.  Instead AQL works with our welding clients to thoroughly examine each welding process and select the contaminants that are likely to occur in significant quantities while also evaluating the toxic characteristics of each.  This rationale results in the sampling and analysis for only the pertinent chemicals.  This overall strategy produces exposure data that is scientifically defensible, regulatory compliant and economical. 

With AQL you are assured an economical yet regulatory compliant sampling and testing program.  Call today for a monitoring proposal and quotation for your welding processes.

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