NY Asbestos Abatement key terms

A chronic lung disease caused by inhaling asbestos fibers, in which scar tissue forms in the lungs and makes breathing progressively harder. It usually develops many years after heavy, prolonged exposure.

A rare cancer of the thin lining around the lungs or abdomen, strongly linked to asbestos exposure. It can appear decades after exposure and often has a poor prognosis.

The time between first exposure to asbestos and the appearance of a related disease. For asbestos-related cancers it is commonly 20 to 40 years or more.

A program of periodic health evaluations for asbestos-exposed workers, including medical history, physical exam, chest X-ray, and lung function testing. It aims to detect health changes early, not to certify fitness for work.

A breathing test that measures how much air the lungs can hold and how quickly it can be exhaled. It helps detect reduced lung function in asbestos-exposed workers.

A physician certified by the National Institute for Occupational Safety and Health to classify chest X-rays for pneumoconiosis using the ILO system. B-reads improve consistency in interpreting asbestos-related lung changes.

The combined effect of two exposures being greater than the sum of their separate effects. Asbestos exposure and cigarette smoking together multiply lung cancer risk far beyond either alone.

A license issued by the New York State Department of Labor that authorizes a business to perform asbestos abatement work. The firm must meet training, insurance, and notification requirements.

A licensed business that contracts to perform asbestos abatement, enclosure, encapsulation, or related work. In New York it must hold a valid asbestos handling license.

A trained and certified individual who directly supervises asbestos abatement work and workers on a project, ensuring compliance with work practices, safety, and regulations.

A trained worker who performs asbestos abatement, including removal, enclosure, or encapsulation, under the direction of a supervisor. New York requires certification and annual refresher training.

A trained professional retained to observe abatement work, verify compliance, conduct or oversee air monitoring, and confirm that clearance requirements are met before reoccupancy.

A written notice submitted to the New York State Department of Labor before starting most asbestos projects, usually at least 10 days in advance, describing the site, schedule, and scope.

A written approval from the regulatory agency allowing an alternative method or delayed notification when strict compliance with a rule is impractical. It specifies conditions that must be followed.

The National Emission Standards for Hazardous Air Pollutants, a federal EPA rule that governs how asbestos is handled, packaged, and disposed of to prevent fiber release. It also sets work practice standards for demolition and renovation.

The Asbestos Hazard Emergency Response Act, a federal law requiring schools to inspect for asbestos, prepare management plans, and use accredited personnel. It also established training accreditation requirements.

Any material or product that contains more than one percent asbestos by weight, as determined by laboratory analysis or assumed by regulation.

A material that must be treated as asbestos-containing until sampling proves otherwise, because of its type, age, or use. Thermal system insulation and surfacing materials in older buildings are common examples.

Describing asbestos-containing material that can be crumbled, pulverized, or reduced to powder by hand pressure when dry. Friable material releases fibers easily and is more hazardous.

Describing asbestos-containing material that cannot be crumbled or powdered by hand pressure when dry, such as asbestos cement or vinyl floor tile. It can still become friable if cut, sanded, or damaged.

Non-friable asbestos-containing material such as floor tile, roofing felt, and asphalt coatings that is not easily crumbled. It may still require regulated work practices when removed.

Thermal system insulation: asbestos-containing material applied to pipes, boilers, tanks, and ducts to control temperature. It is often friable and is a common source of exposure during repair or demolition.

An area of material that is uniform in color, texture, and date of application, so one set of bulk samples can represent the whole area. Inspectors use it to plan sampling.

Polarized light microscopy: a laboratory method that identifies asbestos fibers by their optical properties and estimates their percentage in a bulk sample. It is the standard method for analyzing bulk samples.

Regulated asbestos-containing material: a category under NESHAP that includes friable asbestos material and certain non-friable material that will be disturbed. It triggers specific handling and disposal requirements.

A trained and accredited person who surveys buildings, identifies and samples suspect asbestos-containing materials, and assesses their condition. The inspector's findings guide management and abatement decisions.

Work practices that keep asbestos material wet with water or a wetting agent during removal, handling, and disposal to suppress fiber release. Wetting must be maintained throughout the job.

A sealed plastic bag with built-in gloves and sleeves that encloses a small section of pipe or fittings during asbestos removal. It lets workers remove material without releasing fibers into the room.

A sealed work area kept under slight negative pressure by HEPA-filtered exhaust so air flows inward and fibers cannot escape. It includes critical barriers and a decontamination unit.

A vacuum equipped with a high-efficiency particulate air filter that captures very small particles, including asbestos fibers. It is used for cleaning surfaces and equipment in abatement work.

A sequence of connected rooms-clean room, shower, and dirty room-that workers pass through when entering or leaving a regulated work area. It prevents fibers from being carried out.

Powered air-purifying respirator: a battery-powered blower pulls air through a HEPA filter and delivers it to a facepiece or hood. It offers better protection and less breathing resistance than a negative-pressure respirator.

A work area marked off with warning signs and barriers where asbestos abatement is performed and where exposure levels may exceed limits. Access is limited to trained, authorized workers.

A temporary seal, usually plastic sheeting, placed over openings, surfaces, or HVAC systems to prevent asbestos fibers from spreading beyond the work area.

Phase contrast microscopy: a rapid, relatively inexpensive method for counting airborne fibers in air samples. It counts all visible fibers, not just asbestos, and cannot identify fiber type.

Transmission electron microscopy: a laboratory method that identifies asbestos fibers by type and structure and can detect very thin fibers. It is more sensitive and specific than phase contrast microscopy.

Post-abatement air sampling performed after cleaning to confirm that airborne fiber levels are below the required limit. The area cannot be reoccupied until clearance is achieved.

An air sampling technique used for clearance that deliberately disturbs the air, for example with a fan or by brushing surfaces, to detect fibers that could become airborne later. It gives a more protective result.

A shipping document that records the quantity, type, origin, and destination of asbestos waste. It tracks the waste from the project site to the disposal facility.

Packaging asbestos waste in two layers of leak-tight, labeled plastic bags or wrapping, with the outer layer clean. This reduces fiber release and contamination during handling and transport.