Traditionally, assessing personal exposures in the oil and gas industry was performed using the concept of “total hydrocarbons,” or THCs. But an alternative exposure assessment strategy drops the use of THCs and adds analysis of hydrocarbon mixtures such as gasoline, kerosene, and diesel, also known as light, middle, and heavy distillates.   

AIHA TASK FORCE GENERATES INDUSTRY-SPECIFIC COVID-19 GUIDANCE
AIHA's COVID-19 Re-Open America Guidelines Task Force, which comprises volunteers among the AIHA membership, worked tirelessly to develop industry-specific guidance intended to help business owners, employers, employees, and consumers implement science-based procedures for limiting the spread of COVID-19 as businesses reopen during the pandemic. This article describes the beginnings of AIHA's "Back to Work Safely" initiative.  

COVID-19 CRISIS HEIGHTENS RISK TO CHEMICAL SUPPLY CHAINS AND BUSINESS CONTINUITY       
Since at least the turn of the century, increasing globalization had raised concerns that supply chains have become so lean and efficient that they are vulnerable to disruptions. When the World Health Organization declared the novel coronavirus outbreak a global health emergency on Jan. 30, these fears began to come true.  

It has been a year of change for the conference formerly known as Stewardship. Rebranded as PSX, the 2020 event, scheduled to be held in September in Houston, was switched to a virtual-only format due to safety concerns related to the COVID-19 pandemic. In this article, the Synergist editors preview a few of the planned sessions.