Why Get a Mold Inspection?
Learn when a professional mold inspection may be useful after musty odors, leaks, damp materials, HVAC complaints, water damage or concerns about concealed mold growth.
Read mold inspection articleEnvironmental Testing Articles and Industrial Hygiene Resources
Practical articles about mold, moisture, indoor air quality, formaldehyde, VOCs, lead dust, smoke residue, allergens, HVAC contamination, water quality, radiofrequency exposure and other building-related environmental concerns.
Environmental information organized by concern
The Angstrom Testing Services resource center provides practical information for homeowners, tenants, property managers, building owners, attorneys, contractors, schools, health care facilities and commercial property professionals.
The articles explain common warning signs, likely contaminant sources, inspection considerations, sampling methods, analytical limitations and situations where professional environmental testing may be useful.
For site-specific assistance, use the linked service pages or provide details about the property and environmental concern in the project request form.
Browse the environmental resource library
Select a category to review articles related to that environmental testing concern.
Mold inspections, hidden mold, water damage, basements, pipe condensation, remediation clearance and HVAC contamination.
Browse mold articles 02Ventilation, carbon dioxide, carbon monoxide, particles, dust, allergens, combustion sources and sick-building complaints.
Browse IAQ articles 03Formaldehyde, VOCs, cabinetry, thirdhand smoke, nicotine residue, chemical odors and radiofrequency exposure.
Browse chemical articles 04Lead dust wipes, XRF testing, deteriorated paint, older buildings, renovation work and the EPA RRP Rule.
Browse lead articlesRecommended starting points
These articles address some of the most common questions involving hidden mold, remediation clearance and indoor chemical sources.
Learn when a professional mold inspection may be useful after musty odors, leaks, damp materials, HVAC complaints, water damage or concerns about concealed mold growth.
Read mold inspection article
Review how engineered wood, cabinets, furniture, adhesives and renovation materials may contribute to formaldehyde and chemical odor concerns.
Read formaldehyde article
Review post-remediation visual inspection, moisture evaluation, airborne mold sampling and professional verification after mold cleanup work.
Read clearance articleMold inspections, hidden conditions and water damage
Articles about mold inspection, damp materials, hidden growth, basement conditions, pipe condensation, remediation verification and HVAC dust.
Post-remediation inspection, moisture review, visual clearance and environmental testing after mold cleanup work.
Read articleWhen professional inspection may help evaluate musty odors, leaks, visible staining, HVAC odors and hidden mold concerns.
Read articleGeneral considerations involving moisture correction, containment, cleaning methods and post-cleanup verification.
Read articleHow pipe condensation can contribute to damp cabinets, wall cavities, ceilings, basements and mold growth.
Read articleBasement moisture, musty odors, mold potential, humidity, ventilation, dust and below-grade air movement.
Read articleMold behind walls, under flooring, above ceilings, in cabinets and within other concealed building locations.
Read articleWhen duct dust, visible contamination, mold-like growth, odors and debris in HVAC equipment may warrant further evaluation.
Read articleReview Angstrom’s mold inspection, moisture assessment and HVAC contamination services.
Ventilation, combustion, dust and building-related complaints
Articles about carbon dioxide, carbon monoxide, fine particles, ventilation, dust reservoirs, pest allergens and recurring building-related complaints.
How carbon dioxide can be used as an occupancy and ventilation indicator in offices, schools and occupied indoor environments.
Read articleDust mites, pet dander, pollen, fungal particles and other allergens that may collect in soft furnishings and settled dust.
Read articleHow pest debris, droppings and body fragments may become part of settled dust in apartments, schools, offices and homes.
Read articleHow outdoor air standards may provide context for indoor carbon monoxide, smoke, combustion and fine-particle investigations.
Read articleVentilation, moisture, chemical emissions, particles, odors and HVAC conditions that may contribute to recurring occupant complaints.
Read articleDust, allergens, microbial debris, visible contamination and odor concerns associated with ducts and air-handling equipment.
Read articleReview air sampling, odor investigation, ventilation evaluation and environmental dust-testing services.
Formaldehyde, smoke residue, odors and RF exposure
Articles about indoor chemical emissions, formaldehyde, engineered wood, nicotine residue, thirdhand smoke and cell-tower exposure concerns.
Formaldehyde emissions from cabinetry, composite wood, furniture, adhesives and renovation materials.
Read articleEngineered wood, MDF, particleboard, plywood, adhesives and formaldehyde concerns involving cabinets and furnishings.
Read articleHow tobacco-smoke residue may remain on walls, floors, furniture, dust, HVAC surfaces and other indoor materials.
Read articleWhat radiofrequency measurements can document and how results may be compared with applicable exposure criteria.
Read articleReview formaldehyde, VOC, smoke-residue, mercury-vapor and radiofrequency-testing services.
Older paint, settled dust and renovation work
Articles about lead dust wipe sampling, painted surfaces, older housing and lead-safe renovation practices.
Why lead dust may collect on floors, window sills, window wells, stairs and renovation areas even when surfaces appear clean.
Read articleLead paint concerns involving walls, windows, doors, trim, stairs, railings and other painted building components.
Read articleLead-safe work practices, certified firms, renovation dust and testing considerations for work involving older painted surfaces.
Read articleReview XRF inspections, dust wipe sampling, clearance testing and lead-risk-assessment services.
From general information to property-specific testing
Select the relevant service when you need a site inspection, environmental samples, laboratory analysis or written documentation.
Odors, particles, dust, smoke, ventilation, chemical vapors and HVAC-related complaints.
View air quality testing MMoisture assessment, mold air sampling, surfaces, dust, hidden mold and remediation clearance.
View mold testing ACMLicensed inspections, bulk materials, air testing, dust testing and renovation surveys.
View asbestos testing PbXRF inspections, dust wipes, risk assessments, clearance and renovation investigations.
View lead testing VOCCabinets, furnishings, flooring, renovation materials and chemical odor investigations.
View chemical testing H₂OLead, bacteria, metals, PFAS, VOCs, private wells and drinking-water complaints.
View water testing LEGPotable water, showers, tanks, hot-water systems and cooling-tower investigations.
View Legionella testing MYCDust, surfaces, water-damaged materials and mold-related building investigations.
View mycotoxin testingOfficial technical and regulatory resources
Access federal and New York resources related to indoor air quality, mold, occupational sampling, lead-safe renovation, laboratories and radiofrequency exposure.
Federal resources concerning indoor pollutant sources, ventilation, source control, particles, filtration and building air quality.
Open EPA resource EPAGuidance about moisture control, mold growth, damp materials, cleanup and prevention.
Open EPA resource NIOSHSampling and analytical methods used for occupational and industrial-hygiene exposure assessment.
Open NIOSH resource EPAFederal requirements and resources for renovation, repair and painting involving older painted surfaces.
Open EPA resource NYSDOHSearch New York environmental laboratories and their approved analytical fields.
Search laboratories FCCFederal information concerning radiofrequency exposure, communications facilities and applicable exposure criteria.
Open FCC resourceRegional environmental testing
Angstrom provides environmental testing and industrial hygiene consulting throughout the New York metropolitan region and selected nearby areas of New Jersey and Connecticut.
Serving Nassau County, Suffolk County, Queens and nearby Long Island communities.
View Rockville Centre locationServing Manhattan, Brooklyn, Queens, the Bronx, Staten Island and properties throughout New York City.
View Manhattan locationServing White Plains, Westchester County and nearby areas of southern Connecticut.
View White Plains locationUsing the Angstrom environmental resource center
Topics include mold, moisture, HVAC systems, indoor air quality, formaldehyde, VOCs, lead dust, renovation, smoke residue, allergens, carbon dioxide, carbon monoxide and radiofrequency exposure.
An article provides general information. A property-specific conclusion requires evaluation of the actual conditions, building history, accessible areas, suspected sources and any samples or measurements included in the project.
Start with the complaint or decision that must be addressed. Testing methods should be selected for the suspected contaminant, source, environmental medium, reporting limit and intended use of the findings.
No. Angstrom provides independent environmental inspection, testing, sampling, laboratory coordination, consulting and written reporting.
Angstrom’s Web Stories and Field Guides page provides visual summaries of common building and environmental testing topics.
Provide the property address, property type, affected areas, complaint history, visible conditions, odors, moisture, renovation work, previous testing and the documentation you need.
Request independent environmental testing
Tell us about the property, environmental concern, affected rooms, odors, water damage, renovation work, suspected source, previous testing and the type of documentation you need.
Certified Industrial Hygienist
Indoor Air Quality Association
Board for Global EHS Credentialing
IICRC Certified
Angstrom Testing Services LLC provides independent environmental consulting, industrial hygiene assessments, indoor air quality diagnostics, and environmental sampling throughout New York City, Long Island, Westchester, and surrounding areas.
Services include mold testing and air sampling, asbestos inspections, indoor air quality testing, lead inspections, and water quality testing. Angstrom provides testing and consulting services only and is not financially affiliated with remediation or abatement contractors.