Lead Paint Removal >> Painters Exposure To Lead Paint

The California Painters Project was a 2-year intervention research project aimed at preventing lead poisoning among a group of residential and commercial painters in San Francisco, Calif. As part of this project 12 contractors invited project staff to conduct employee Painters Exposure To Lead Paint exposure monitoring. 

Twenty-five full-shift samples were collected, Painters Exposure To Lead Paint with 8-hr TWA results ranging from 0.8 to 550 mg/m3 (arithmetic mean: 57 mg/m3 ). Six of the 25 samples (24%) were above the Occupational Safety and Health Administration (OSHA) permissible exposure limit; all of these involved dry manual sanding or uncontrolled power sanding.   Fifty-eight 30-minute task-specific samples also were collected. The arithmetic mean concentration results for heat gun use, wet sanding, and Painters Exposure To Lead Paint open flame burning were all under 10 mg/m3 ; the mean concentration for HEPA exhausted power sanding was 33 mg/m3 ; dry manual scraping, 71 mg/m3 ; dry manual sanding, 420 mg/m3 ; and uncontrolled power sanding, 580 mg/m3 . 

Analysis and modeling based on the 30-min results for dry manual sanding and Painters Exposure To Lead Paint uncontrolled power sanding indicate that painters' full-shift exposures often exceed 500 mg/m3 and the OSHA assigned level of protection for a half-mask air-purifying respirator. These results are cause for concern because both of these surface preparation methods are widely performed wearing half-mask respirators. 

The data show that HEPA-exhausted power sanding reduces paint dust exposure levels by approximately 80 to 90%. These tools should be more widely promoted as a safer alternative work method. Keywords: lead exposure, painters, surface preparation, Painters Exposure To Lead Paint work methods. residential and commercial painters often spend a considerable amount of time and effort preparing exterior building surfaces for repainting. 

Surface preparation means sanding, scraping, burning, or otherwise removing old paint that is peeling or flaking and no longer intact. This ensures that the new primer and paint will form a durable, Painters Exposure To Lead Paint weather-resistant bond with the surface to which it is being applied. The amount of old paint removed during surface preparation depends on its condition, aesthetic considerations, and the project budget. 

In some areas the accumulated layers of paint may be completely removed, Painters Exposure To Lead Paint whereas in other areas the surface may receive only light sanding. The removal of lead paint that accompanies this work is highly irregular and completely incidental to the process of surface preparation. The exteriors of buildings constructed before 1980,(1) and in particular those built before 1950, frequently are coated with one or more layers of lead-containing paint. 

These buildings include single family dwellings, apartment buildings, schools, day care centers, offices, and retail and commercial establishments. Where lead paint is present, Painters Exposure To Lead Paint surface preparation work can produce significant amounts of lead paint dust or fume. Studies have shown that airborne lead levels in excess of 50 mg/m3 are generated by power sanding and grinding, dry manual sanding and scraping, heat gun use, and propane torch burning. 

Data on lead poisoning among residential and commercial painters are limited. In part this is because lead-poisoned workers may not exhibit overt symptoms, and Painters Exposure To Lead Paint blood lead testing is not widespread within the construction industry. The Occupational Safety and Health Administration (OSHA) requirement for blood lead testing in the construction industry did not become effective until 1993 (29 CFR §1926.62). 

Nevertheless, serious lead poisoning cases have been documented among house painters who conduct surface preparation without adequate protective measures. In a number of studies, sanding, scraping, burning, or Painters Exposure To Lead Paint sandblasting lead paint resulted in blood lead levels (BLLs) ranging from 70 to 600 mg/ dL. 

State blood lead registries also have identified painters with seriously elevated blood lead levels. A review of data from California's Occupational Blood Lead Registry from 1987 through 1989 showed that applying lead paint or Painters Exposure To Lead Paint removing it by scraping or sandblasting were the tasks associated with painters' elevated BLLs.(15) 

In Massachusetts, house and bridge painters comprised 36% of construction workers with BLLs exceeding 40 mg/dL, whereas deleaders, or residential lead abatement workers who use similar paint removal techniques, Painters Exposure To Lead Paint accounted for 60%.(16) This investigation was conducted as part of the California Painters Project, a 2-year intervention research project conducted by the Occupational Lead Poisoning Prevention Program in the California Department of Health Services from spring 1994 to fall 1995. 

The effort was to design, implement, and evaluate a multidimensional intervention strategy to prevent lead poisoning among a group of lead-exposed painters in the City and County of San Francisco, Calif. Twenty-one established, licensed, residential and Painters Exposure To Lead Paint commercial painting contractors voluntarily enrolled in this project; altogether, they employed 132 employees doing some surface preparation on pre-1980 buildings.(17) 

Airborne exposure monitoring was conducted as a service to participating contractors and to gather more Painters Exposure To Lead Paint information on residential and commercial painters' lead exposures. The 21 participating painting contractors were encouraged to invite project staff to conduct airborne exposure monitoring during surface preparation work on a pre-1980 building. 

Twelve contractors extended invitations, Painters Exposure To Lead Paint and exposure monitoring was conducted for 1 day at each of the 12 job sites during the summer and fall of 1994. The contractor selected the pre-1980 job site and the date of the monitoring. Prior to monitoring, project staff confirmed the presence of detectable lead content in the paint using a sodium rhodizinate colorimetric spot test. 

Full-Shift Airborne Lead Exposure Monitoring The full-shift personal sampling followed National Institute for Occupational Safety and Health (NIOSH) Method 7300 (Elements by ICP), Painters Exposure To Lead Paint using standard 0.8 mm mixed cellulose ester (MCE) filters.(18) The target airflow rate was 2 L/min. The sampling was conducted in accordance with the requirements of the OSHA Lead in Construction Standard. 

Laboratory analysis for lead was conducted by the Wisconsin Occupational Health Laboratory (WOHL), Painters Exposure To Lead Paint part of the Wisconsin State Laboratory of Hygiene. The WOHL was accredited by the American Industrial Hygiene Association Environmental Lead Laboratory Accreditation Program (ELLAP) for lead in air analysis. 

The limit of quantitation (LOQ) at the target sample volume of 960 L was 0.5 mg/m3. Our project, although focused on an educational intervention effort, Painters Exposure To Lead Paint also created a forum that brought to light shortcomings in the public health and regulatory enforcement strategies for protecting workers and building occupants. 

Our interaction with contractors identified at times a lack of integration between various guidelines, regulations, and training requirements pertaining to lead poisoning prevention. Developing separate, and Painters Exposure To Lead Paint sometimes contradictory, regulations for worker, childhood, and environmental protections creates huge disincentives for contractors to be participants in this change process. 

The issue of lead poisoning prevention presents a unique opportunity to address a problem in an integrated public health approach or Painters Exposure To Lead Paint to have it spiral out into fragmented approaches that are piecemeal at best and ineffective at worst.

Air Cleaning Devices For The Home Fire

AIR CLEANING DEVICES FOR THE HOME Frequently Asked Questions. Many types of indoor pollution problems are found in homes. The most effective approach to solving these problems is usually to remove or reduce the sources of indoor pollution. Ventilation also helps remove indoor air pollutants, [M  read more..

Emergency Board Up_Emergency Procedures For Storms


Levees & Dams- Levees are designed to protect hold back a certain level of water. However, levees can and do fail; and when they fail, they can fail catastrophically. Weakening of levees over time, or as a result of weather events exceeding the levee's level of support, can  read more..

Mold Tester Certification

There is substantial visible mold growth inside hard surface (e.g., sheet metal) ducts or on other components of your heating and cooling system. There are several important points to understand concerning mold detection in heating and cooling systems: Many sections of your heating and cooling syste  read more..

How To Clean Water Damaged Electronic Circuits

Crystals shall be swept synthetic quartz, meeting the infrared quality requirements of grade A or B of Synthetic Quartz Crystal  Specifications and Guide to the Use, IEC 60758 (1993-04), International Electrotechnical Commission, Geneva, Switzerland. Crystals shall be mounted with at least a th  read more..

Childhood Lead Poisoning Prevention

Childhood Lead Poisoning Prevention Program The elimination of childhood lead poisoning has been one of the most effective public health campaigns of the 21st century, but much work remains to be done. The Arizona Department of Health Services (ADHS) remains committed to preventing new cases of chil  read more..

Get Rid Of Radon Out Of Your Home

Individuals and organizations submitting long-term devices within methods such as EL, AT, and some RP are expected to give EPA complete Radon Mitigation Get Rid Of Radon Out Of Your Home information on their lower limit of detection in (pCi/L)-days, as well as the maximum permissible exposure level upon request. EPA will work with device manufa  read more..

How To Get Rid Of Mold

Equipment Moisture Meters: Measure/Monitor Moisture Levels in Building Materials Moisture meters may be helpful for measuring the moisture content in a variety of building materials following water damage. They can also be used to monitor the process of drying damaged materials. These direct reading  read more..

Ice Storm Damage

A usual representation of the damaging results of hurricanes is that of Wind Damage Ice Storm Damage storm-driven waves colliding against an oceanfront put an end to fishing piers and coastal houses. Waves, pushed to a speed that is a substantial portion of the hurricane's wind speed, crash against any building in t  read more..

Asbestos Cancer

Abstract The most recent update of the U.S. Environmental Protection Agency (EPA) health assessment document for asbestos (Nicholson, 1986, referred to as Asbestos Abatement Asbestos Cancer "the EPA 1986 update") is now 20 years old. 

That document contains estimates of "potency factor  read more..

How To Restore Vintage Paper

Proper Care and Handling of Books Taking care when handling any collection item, especially functional items like books with flexing parts, is one of the more effective, cost-efficient, Document restoration How To Restore Vintage Paper and easily achieved preservation measures.

Take proper care when handling books by: Having cl  read more..