2 More H2S Exceedances for Mon Valley, Still No Word from ACHD on What’s Being Done to Stem Issue
Blog Against Smog
![2 More H2S Exceedances for Mon Valley, Still No Word from ACHD on What’s Being Done to Stem Issue](https://static.wixstatic.com/media/be24dd_73cbd88141b341ddba792afc93c4035e~mv2.png/v1/fill/w_243,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_73cbd88141b341ddba792afc93c4035e~mv2.webp)
![UPDATED: Rotten Egg Stench Persists in Mon Valley as Liberty Experiences More Air Quality Exceedance](https://static.wixstatic.com/media/be24dd_5f65a3fb01be4156af6222d1d6a52dc5~mv2.png/v1/fill/w_426,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_5f65a3fb01be4156af6222d1d6a52dc5~mv2.webp)
- Oct 20, 2021
UPDATED: Rotten Egg Stench Persists in Mon Valley as Liberty Experiences More Air Quality Exceedance
![More Rotten Egg Stench in Mon Valley as Braddock Monitor Experiences 13th Hydrogen Sulfide Exceedanc](https://static.wixstatic.com/media/be24dd_0c38c7956a3e4a388b7cef0f078fe792~mv2.png/v1/fill/w_426,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_0c38c7956a3e4a388b7cef0f078fe792~mv2.webp)
- Oct 19, 2021
More Rotten Egg Stench in Mon Valley as Braddock Monitor Experiences 13th Hydrogen Sulfide Exceedanc
![Mon Valley Experiences More Malodors, Liberty Monitor Again Exceeds PA Air Quality Standard](https://static.wixstatic.com/media/be24dd_66189b91020e435eb4da9d2a57ba4c5a~mv2.png/v1/fill/w_426,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_66189b91020e435eb4da9d2a57ba4c5a~mv2.webp)
- Oct 14, 2021
Mon Valley Experiences More Malodors, Liberty Monitor Again Exceeds PA Air Quality Standard
![Mon Valley Stench Returns, GASP Again Calls on ACHD for Public Update](https://static.wixstatic.com/media/be24dd_ce93f42b248a4e18bda4148a0e92d4b1~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_ce93f42b248a4e18bda4148a0e92d4b1~mv2.webp)
- Oct 4, 2021
Mon Valley Stench Returns, GASP Again Calls on ACHD for Public Update
![](https://static.wixstatic.com/media/be24dd_292b96511af44b90a28c6bd431b6716f~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/be24dd_292b96511af44b90a28c6bd431b6716f~mv2.webp)
![Smoke & Flames at Edgar Thomson Plant, More H2S Exceedances Punctuate Need for Public Update](https://static.wixstatic.com/media/be24dd_292b96511af44b90a28c6bd431b6716f~mv2.jpg/v1/fill/w_453,h_340,fp_0.50_0.50,q_90,enc_auto/be24dd_292b96511af44b90a28c6bd431b6716f~mv2.webp)
- Aug 23, 2021
Smoke & Flames at Edgar Thomson Plant, More H2S Exceedances Punctuate Need for Public Update
![Public Comment Period for Allegheny County Health Department’s Annual Air Monitoring Plan Closes Mon](https://static.wixstatic.com/media/be24dd_1e9799aa9360437db864427fd376a035~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_1e9799aa9360437db864427fd376a035~mv2.webp)
- Aug 5, 2021
Public Comment Period for Allegheny County Health Department’s Annual Air Monitoring Plan Closes Mon
![County Sees More Air Quality Exceedances Monday, Tuesday Designated as Code Orange Air Quality Actio](https://static.wixstatic.com/media/be24dd_b70edf0f63104cda90bb23eb4d79d6a5~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_b70edf0f63104cda90bb23eb4d79d6a5~mv2.webp)
- Jul 6, 2021
County Sees More Air Quality Exceedances Monday, Tuesday Designated as Code Orange Air Quality Actio
![UPDATED: Yet Another H2S Exceedance & More Unhealthy Air for Mon Valley, ACHD Responds](https://static.wixstatic.com/media/be24dd_a049477e691b4ba6b385c94315572da1~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_a049477e691b4ba6b385c94315572da1~mv2.webp)
- Apr 7, 2021
UPDATED: Yet Another H2S Exceedance & More Unhealthy Air for Mon Valley, ACHD Responds
![Allegheny County Tallied Two More Air Quality Exceedances Last Week](https://static.wixstatic.com/media/be24dd_2f1cd7918a4f4b749e184cecff39a001~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_2f1cd7918a4f4b749e184cecff39a001~mv2.webp)
- Dec 28, 2020
Allegheny County Tallied Two More Air Quality Exceedances Last Week
![](https://static.wixstatic.com/media/be24dd_33416d839a7541ff9414ccecad8dba32~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/be24dd_33416d839a7541ff9414ccecad8dba32~mv2.webp)
![About That Rotten Egg Odor Plaguing Your Neighborhood, What Causes It & How U.S. Steel Can Help](https://static.wixstatic.com/media/be24dd_33416d839a7541ff9414ccecad8dba32~mv2.jpg/v1/fill/w_453,h_340,fp_0.50_0.50,q_90,enc_auto/be24dd_33416d839a7541ff9414ccecad8dba32~mv2.webp)
- Nov 18, 2020
About That Rotten Egg Odor Plaguing Your Neighborhood, What Causes It & How U.S. Steel Can Help
![Watchdog Report: Tuesday Marked Seventh Day in a Row for Hydrogen Sulfide Exceedances in Allegheny C](https://static.wixstatic.com/media/be24dd_975c7247d25b4556ae12e62e82554de2~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_975c7247d25b4556ae12e62e82554de2~mv2.webp)
- Nov 11, 2020
Watchdog Report: Tuesday Marked Seventh Day in a Row for Hydrogen Sulfide Exceedances in Allegheny C
![Allegheny County Health Department Responds to Extended Bout of Bad Air Quality, Again Blames the We](https://static.wixstatic.com/media/be24dd_380449a64859495e9d5e8f9092a465e1~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_380449a64859495e9d5e8f9092a465e1~mv2.webp)
- Nov 10, 2020
Allegheny County Health Department Responds to Extended Bout of Bad Air Quality, Again Blames the We
![Steps You Can Take to Minimize Impacts of Poor Air Quality as We Wait for ACHD, Industry Action](https://static.wixstatic.com/media/be24dd_69f1f55b1ec64462a2cae3fb5907825b~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_69f1f55b1ec64462a2cae3fb5907825b~mv2.webp)
- Nov 10, 2020
Steps You Can Take to Minimize Impacts of Poor Air Quality as We Wait for ACHD, Industry Action
![Health Department Warns Stagnant Conditions to Continue Through Tuesday Morning, Increased Air Pollu](https://static.wixstatic.com/media/be24dd_08a599a69db548e491c286c31200781e~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_08a599a69db548e491c286c31200781e~mv2.webp)
- Nov 9, 2020
Health Department Warns Stagnant Conditions to Continue Through Tuesday Morning, Increased Air Pollu
![UPDATED: Mon Valley Experiences More Air Quality Exceedances, ACHD Says Conditions to Persist Throug](https://static.wixstatic.com/media/be24dd_7b4509648fa14fe7b180cb804df2fde5~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_7b4509648fa14fe7b180cb804df2fde5~mv2.webp)
- Nov 7, 2020
UPDATED: Mon Valley Experiences More Air Quality Exceedances, ACHD Says Conditions to Persist Throug
![](https://static.wixstatic.com/media/be24dd_54a96b7e5457472191448c5f950d5eed~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/be24dd_54a96b7e5457472191448c5f950d5eed~mv2.webp)
![ACHD Air Pollution Advisory Committee: Board of Health Should Approve Coke Oven Reg Revisions to Pub](https://static.wixstatic.com/media/be24dd_54a96b7e5457472191448c5f950d5eed~mv2.jpg/v1/fill/w_453,h_340,fp_0.50_0.50,q_90,enc_auto/be24dd_54a96b7e5457472191448c5f950d5eed~mv2.webp)
- Oct 7, 2020
ACHD Air Pollution Advisory Committee: Board of Health Should Approve Coke Oven Reg Revisions to Pub
![](https://static.wixstatic.com/media/be24dd_d3820d20e00b4aa6b15a7063680f9755~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/be24dd_d3820d20e00b4aa6b15a7063680f9755~mv2.webp)
![Allegheny County Board of Health Greenlights $340K Air Toxics Study, Additional H2S Monitoring](https://static.wixstatic.com/media/be24dd_d3820d20e00b4aa6b15a7063680f9755~mv2.jpg/v1/fill/w_453,h_340,fp_0.50_0.50,q_90,enc_auto/be24dd_d3820d20e00b4aa6b15a7063680f9755~mv2.webp)
- Sep 3, 2020
Allegheny County Board of Health Greenlights $340K Air Toxics Study, Additional H2S Monitoring
![Allegheny County Experiences Two Air Quality Exceedances Aug. 9; Air Quality Action Day Again Declar](https://static.wixstatic.com/media/be24dd_5e7b9140c7fa461c8f0b8bb285d2cb3e~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_5e7b9140c7fa461c8f0b8bb285d2cb3e~mv2.webp)
- Aug 10, 2020
Allegheny County Experiences Two Air Quality Exceedances Aug. 9; Air Quality Action Day Again Declar
![Special Report: How COVID-19 Impacted Allegheny County Air Quality](https://static.wixstatic.com/media/be24dd_12a52bb7d13a417b90dc6252c90ee74e~mv2.png/v1/fill/w_453,h_340,fp_0.50_0.50,q_95,enc_auto/be24dd_12a52bb7d13a417b90dc6252c90ee74e~mv2.webp)
- May 28, 2020
Special Report: How COVID-19 Impacted Allegheny County Air Quality