Rapid real-time screening of soil and water at hazardous waste sites

This paper was presented at the American Chemical Society Fall meeting in Philadelphia, PA on the Environmental Chemistry Division program track in a symposium titled: Recent Advances in Remediation Strategies and Technologies for the Cleanup of Hazardous Waste Sites. This talk discusses headspace screening of VOC’s in soil and water samples that can be done in the field using a GC/PID headspace method for rapid detection. 

Headspace Gas Chromatograph/PID for Onsite Screening of Soil and Water at Hazardous Waste Sites from Jennifer Maclachlan

Climate Change Disruption: How do we know? What can we do?

Climate Change Disruption:

How Do We Know? What Can We Do?
NORTHEAST LECTURE SERIES 2016

 led by Dr. Andy Jorgensen

Associate Professor of Chemistry and Environmental Sciences, University of Toledo

Senior Fellow, National Council for Science and the Environment.

The Northeastern Section of the American Chemical Society Public Relations Committee presents three events:

CAPE COD SCIENCE CAFE 

Friday evening June 17, 2016 7PM-9PM

Cape Cod Science Cafe hosted by Cape Cod Beer, Hyannis, MA. 

This 21+ event is the only one with beer! Cash bar. The public is invited.

 

CAPE COD CLIMATE SCIENCE CHAT and LEARN LECTURE

Monday evening June 20, 2016 6:00PM-7:30PM

Southeastern Massachusetts area NESACS members were invited to this special lecture hosted by the Cape Cod Museum of Natural History, Brewster, MA.

NESACS Members were invited to a private dinner at the Lost Dog prior to the event.

NESACS BOSTON LECTURE

With Suffolk University Professor John McCoy's Ethics students at the Northeast Climate Change Disruption Tour this evening.

Wednesday evening June 22, 2016 6:00PM-7:30PM NESACS members were invited to attend this Boston lecture and coffee hosted by Suffolk University, 73 Tremont St, Boston, MA. 

NESACS friends group dinner at Emmett's in Boston at the end of a successful tour!

Jennifer and Jack at the Cape Cod Broadcasting Media Radio station with Andy on the phone being interviewed about the Northeast Climate Disruption Tour

Cape Cod Community Media cable tv special featuring Climate Science! As part of his Northeast Climate Change Disruption Tour, Andy Jorgensen is being featured alongside a Cape Cod Commission representative, to discuss how climate disruption affects us here on Cape Cod. Here's the link to the interview: https://www.youtube.com/watch?v=QXalJcAo0ws

A new technique for ppt levels of mercury in air & water

Accepted for presentation at #acsBoston on the American Chemical Society Division of Environmental Chemistry August 16-20 2015 at both SCI-MIX and ENVR posters ABSTRACT SYMPOSIUM NAME: SCI-MIX and General Posters

ABSTRACT SYMPOSIUM PROGRAM AREA NAME: [ENVR] Division of Environmental Chemistry

CONTROL ID: 2253367

PRESENTATION TYPE: Poster

TITLE: A new technique for ppt levels of mercury in air and  water

AUTHORS (FIRST NAME, LAST NAME): John N. Driscoll1, Jennifer L. Maclachlan1

INSTITUTIONS (ALL): 1. PID Analyzers, LLC, Sandwich, MA, United States.

ABSTRACT BODY:  Abstract: We reported recently that the photoionization detector (PID) with a 10.6 eV lamp responds to mercury (Hg) with detection limits of 10 ppb. The PID is a non-specific method for Hg since it also has a strong response to VOC’s. Other non-specific methods like UV absorbance and atomic fluorescence use a gold pre concentrator (GPC) to collect Hg by forming a Au/Hg amalgam at room temperature, purging to remove water and VOC’s then rapidly heating to 500oC to release the Hg. We have found that this same technique can be coupled to the PID to produce an analyzer with detection limits in the ppt range. For Hg in water, the hydride method can be used to reduce Hg+2 to form elemental mercury that is concentrated on a GPC and detected by PID. This method has low ppt detection limits. This presentation will describe the method and results in detail.