by Jeremy Lancaster | Jan 6, 2026 | Uncategorized
All fungal species have the potential to cause health effects. Molds produce allergens, irritants, and in some cases, mycotoxins that may cause reactions in humans. The types and severity of symptoms depend, in part, on the types of mold present, the extent of an...
by Jeremy Lancaster | Dec 18, 2025 | Uncategorized
There is no accurate figure for the total number of fungal species that exist. However, there have been estimates suggesting well over a million different species. Currently, there are only about 100,000 described fungal species. Some selected fungal...
by Jeremy Lancaster | Dec 9, 2025 | Uncategorized
In the case of asbestos, visible airborne dust represents hazardous concentrations above established occupational exposure limits. Warren Cook stated the following in 1942: “In the case of asbestos dust condition, our evaluation of the exposure should be based on the...
by Jeremy Lancaster | Nov 4, 2025 | Uncategorized
The association between mesothelioma and prior exposure is undisputed. Dodson et al. (2011) cite mesothelioma as a signal tumor for asbestos exposure and typically occurs decades after first exposure to asbestos (Dodson, Hammar, &Poye, 2011). Welch (2007) also...
by Jeremy Lancaster | Oct 27, 2025 | Uncategorized
Occupational exposure standards such as the Threshold Limit Values (TLVs) established by ACGIH, Permissible Exposure Limits enforceable by OSHA, and the Recommended Exposure Limits (RELs) established by NIOSH are based on workplace settings. These occupational...
by Jeremy Lancaster | Sep 23, 2025 | Uncategorized
By: Jerome E. Spear, CSP. CIH, FAIHA The history of appreciating the hazards of asbestos begins in the last part of the 1890s. In Great Britain, as early as 1898, the Lady Inspector of Factories noted that asbestos was causing disease among textile workers (Castleman,...
