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NC DEQ »   News »   Key Issues »   GenX Investigation »   Air Quality Sampling

Air Quality Sampling

Deposition Sampling

Starting in January of 2018, the Division of Air Quality began sampling to assess the deposition of GenX via air emissions from the facility. 

Deposition Sampling Near Chemours

  • Weekly Results 2022 (through April 5)
  • Weekly Results 2021
  • Weekly Results 2020
  • Weekly Results 2019
  • Weekly Results 2018

Deposition Sampling across North Carolina

  • Background Deposition Measurements 

Laboratory Analysis reports

  • Weekly Atmospheric Deposition Data

Emissions Testing

Results of the source testing performed at Chemours since January 2018 are available below.  Chemours has contracted with the source testing company Weston Solutions, Inc. for on-site air emissions sampling.  Chemours has also contracted with Test America Laboratories, Inc. for the methodology, and laboratory analysis.

DAQ staff were present for each source test conducted.  

Emissions Testing

  • 2022
  • 2021
  • 2020
  • 2019
  • 2018

Week of 2/7/2022

  • 2022-023  C3 Dimer  VEN Carbon Bed Test Report
  • 2022-024  C3 Dimer/PFAS  Thermal Oxidizer Test

Week of 5/2/2022

  • 2022-154  C3 Dimer  VEN Carbon Bed Test Report
  • 2022-155  C3 Dimer  SemiWorks Carbon Bed Test Report

Week of 1/25/2021

  • 2021-039ST C3 Dimer/PFAS Thermal Oxidizer Test Report

Week of 3/8/2021

  • 2021-127ST C3 Dimer PPA Carbon Bed Test Report
  • 2021-128ST C3 Dimer VEN Carbon Bed Test Report
  • 2021-129ST C3 Dimer VES Carbon Bed Test Report

Week of 5/3/2021

  • 2021-241ST C3 Dimer SW Carbon Bed Test Report 
  • 2021-242ST C3 Dimer PPA Carbon Bed Test Report

Week of 5/17/2021

  • 2021-243ST C3 Dimer VEN Carbon Bed Test Report
  • 2021-244ST C3 Dimer Polymers Exhaust Stack Test Report
  • 2021-245ST C3 Dimer VES Carbon Bed Test Report

Week of 9/13/2021

  • 2021-316ST C3 Dimer PPA Carbon Bed Test Report 
  • 2021-317ST C3 Dimer VES Carbon Bed Test Report 
  • 2021-318ST C3 Dimer VEN Carbon Bed Test Report 

Week of 12/13/2021

  • 2022-014ST C3 Dimer VEN Carbon Bed Test Report

*VEN-Vinyl Ethers North, VES-Vinyl Ethers South, PPA- Polymer Processing Aid, SW - SemiWorks  

Week of 1/6/2020

  • 2020-289ST C3 Dimer PPA Carbon Bed Test Report
  • PPA Carbon Bed Test Review
  • 2020-290ST C3 Dimer VEN Carbon Bed Test Report
  • VEN Carbon Bed Test Review

Week of 2/17/2020

  • 2020-291ST C3Dimer VES Carbon Bed Test Report
  • VES Carbon Bed Test Review

Week of 6/22/2020

  • 2020-105ST C3 Dimer/PFAS Thermal Oxidizer Test Report
  • Thermal Oxidizer Test Review

Week of 6/25/2020

  • 2020-307ST C3 Dimer VEN Carbon Bed Test Report
  • VEN Carbon Bed Test Review
  • 2020-307ST C3 Dimer VES Carbon Bed Test Report
  • VES Carbon Bed Test Review
  • 2020-307ST C3 Dimer PPA Carbon Bed Test Report
  • PPA Carbon Bed Test Review

Week of 8/31/2020

  • 2020-309ST C3 Dimer VEN Carbon Bed Test Report
  • VEN Carbon Bed Test Review
  • 2020-309ST C3 Dimer VES Carbon Bed Test Report
  • VES Carbon Bed Test Review
  • 2020-309ST C3 Dimer PPA Carbon Bed Test Report
  • PPA Carbon Bed Test Review

Week of 12/7/2020

  • 2020-316ST C3 Dimer VEN Carbon Bed Test Report
  • VEN Carbon Bed Test Review
  • 2020-316ST C3 Dimer VES Carbon Bed Test Report
  • VES Carbon Bed Test Review
  • 2020-316ST C3 Dimer  PPA Carbon Bed Test Report
  • PPA Carbon Bed Test Review

*VEN-Vinyl Ethers North, VES-Vinyl Ethers South, PPA- Polymer Processing Aid, SW - SemiWorks  

Week of 1/7/2019

  • 2019-013ST C3 Dimer VES Test Report
  • VES Test Review 
  • 2019-013ST C3 Dimer PPA Test Report
  • PPA Test Review 
  • 2019-013ST C3 Dimer Semi-Works Test Report
  • Semi-Works Test Review 

Week of 1/14/2019

  • 2019-014ST C3 Dimer VEN Division Stack Test Report
  • 2019-014ST C3 Dimer Polymers Stack Test Report
  • 2019-014ST C3 Dimer Semi-Works Stack Test Report
  • VEN/ Polymers/ Semi-Works Stack Test Review 
  • 2019-014ST C3 Dimer VEN Carbon Bed Test Report
  • VEN Carbon Bed Test Review 

Week of 2/25/2019

  • 2019-070ST C3 Dimer Division Stack/Blower Intake Test Report
  • 2019-070ST C3 DimerVEN Carbon Bed Test Report
  • Division Stack/VEN Carbon Bed Test Review

Week of 3/25/2019

  • 2019-203ST C3 Dimer VEN Division Stack/Carbon Bed Test Report
  • VEN Division Stack/Carbon Bed Test Review

Week of 4/15/2019

  • 2019-204ST C3 Dimer VEN Division Stack/Carbon Bed Test Report
  • VEN Division Stack/Carbon Bed Test Review 

Week of 4/29/2019

  • 2019-205ST C3 Dimer PPA Stack/Carbon Bed Test Report
  • PPA Stack/Carbon Bed Test Review

Week of 5/20/2019

  • 2019-206ST C3 Dimer VES Stack Test Report
  • VES Stack Test Review 

Week of 6/10/2019

  • 2019-208ST C3 Dimer PPA Carbon Bed/Stack Test Report
  • PPA Carbon Bed/Stack Test Test Review 
  • 2019-208ST C3 Dimer VEN Carbon Bed/Stack Test Report
  • VEN Carbon Bed/Stack Test Review

Week of 7/15/2019

  • 2019-261ST C3 Dimer VES Carbon Bed/Stack Test Report
  • VES Carbon Bed/Stack Test Review 

Week of 9/9/2019

  • 2019-308ST C3 Dimer PPA Carbon Bed/Stack Test Report
  • PPA Carbon Bed/Stack Test Review 

Week of 9/23/2019

  • 2019-336ST C3 Dimer Polymers Stack Test Report
  • 2019-336ST C3 Dimer VEN Carbon Bed/Stack Test Report
  • Polymers Stack/VEN Carbon Bed/Stack Test Review 

Week of 11/18/2019

  • 2019-360ST C3 Dimer  VES Carbon Bed Test Report
  • VES Carbon Bed Test Review 

Week of 12/2/2019

  • 2020-037ST C3 Dimer VEN Division Stack Test Report
  • 2020-037ST C3 DimerE-2 Stack Test Report
  • VEN Division Stack/E-2 Stack Test Review

*VEN-Vinyl Ethers North, VES-Vinyl Ethers South, PPA- Polymer Processing Aid, SW - SemiWorks  

Week of 1/22/2018

  • 2018-083ST C3 Dimer VEN/PPA Test Report 
  • VEN/PPA Test Review 
  • EPA Split Results Received

Week of 2/26/2018 

  • 2018-084ST C3 Dimer VES/PPA Test Report 
  • VES/PPA Test Review 
  • EPA Split Results Received 

Week of 3/19/2018

  • 2018-085ST C3 Dimer VEN/Polymers/Semi-Works Test Report 
  • VEN/Polymers/Semi-Works Test Review 

Week of 4/3/2018 & 4/23/2018

  • 2018-109ST/ 2018-135ST HFPO VEN/VES Test Report 
  • VEN/VES Test Review 

Week of 5/14/2018

  • 2018-137ST E1 Polymers Test Report
  • Polymers Test Review 

Week of 6/11/2018

  • 2018-167ST C3 Dimer VEN/PPA Test Report
  • VEN/PPA Test Review 

Week of 7/16/2018

  • 2018-168ST C3 Dimer VEN/PPA Test Report 
  • VEN/PPA Test Review 

Week of 7/23/2018

  • 2018-168ST C3 Dimer VEN/PPA Test Report 
  • VEN/PPA Test Review 

Week of 8/20/2018

  • 2018-357ST C3 Dimer VES Stack Test Report 
  • 2018-357ST C3 Dimer VEN Carbon Bed Test Report 
  • VES Stack/VEN Carbon Bed Test Review 

Week of 11/12/2018

No Test Tracking Assigned
C3 Dimer  VEN           
Test aborted due to start-up issues

Week of 12/3/2018

2018-366ST C3 Dimer VEN                     
Tested 12/6-7/18 after startup/ pluggage issues 

*VEN-Vinyl Ethers North, VES-Vinyl Ethers South, PPA- Polymer Processing Aid, SW - SemiWorks  

GenX Investigation

  • Chemours Consent Order
  • GenX Information for Fayetteville-area Residents
  • Well Sampling Information for Lower Cape Fear Area Residents
  • Recent Actions, Investigations and Enforcement
  • Chemours Permit Information
  • Air Quality Sampling
  • GenX Surface Water Sampling Sites
  • Groundwater
  • Health Related Resources

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https://deq.nc.gov/news/key-issues/genx-investigation/air-quality-sampling