Public Hearing for Respirable Crystaline Silica Permissible Exposure Limit: December 15, 2017

A public hearing will be held on December 15 regarding Washington L&I’s proposed update to Washington’s occupational health and safety rules to include a respirable crystalline silica permissible exposure limit.   The public comment period will end on December 22.  Read more from L&I.

The hearing will be held at 9 a.m. at:

Department of Labor & Industries Headquarters (Room S119)

7273 Linderson Way SW

Tumwater, WA  98501



Spokane-area Aerospace Company Penalized $500,000 for Explosion

Aerospace explosionNewport, WA based Zodiak Cabin & Structures Support LLC and Washington State L&I have settled an appeal of violations following a July, 2015 explosion that injured 17 workers.  The settlement requires Zodiac to pay a penalty of $500,000 for 17 willful and 21 serious violations, which originally resulted in fines exceeding $1.3 million.  Read the full news release from L&I and the initial Spokesman-Review article.

New Study on Setting Occupational Exposure Levels for Hydrocarbon Solvents

The method used assumes additivity between similar hydrocarbon solvents, which is based on the similar toxicological properties observed in studies.  According to the abstract, “Practical demonstrations on how to use these recommendations to develop occupational exposure advice in different situations (from simple complex solvents to blends of complex solvents) are also provided.”

Source: PubMed Abstract

Study Suggests Ranking Procedure to Prioritize Release Assessments of Engineered Nanomaterials

nano-blogFrom the abstract, “The present analysis suggests that process-based release potential can be ranked, thus helping to prioritize release assessments, which is useful for tiered exposure assessment approaches and for guiding the implementation of workplace safety strategies. The contextual information provided in the literature was often insufficient to directly link release to exposure. The studies that did allow an analysis suggested that significant worker exposure might mainly occur when engineering safeguards and personal protection strategies were not carried out as recommended.”

Source: PubMed Abstract

Two New Studies Provide Additional Evidence of a Increased Risk for Lung Cancer in Welders

Welding it togetherOne study was conducted in mice (Falcone et al., 2017), the other is a human epidemiology study (Wong et al., 2017).  The exact agent responsible for the potential increase has not been identified.

Source: Falcone PubMed Abstract

Source: Wong PubMed Abstract