Entries by Thomas Au

PA DEP has declared Air Quality Action Day for Nov. 8

Air Quality Action Day has been declared for Susquehanna Valley, PA, on Sunday, Nov 8 Forecast Sunday, Nov 8: 104 AQI Unhealthy for Sensitive Groups Particle Pollution (2.5 microns) Extended Forecast Monday, Nov 9: 100 AQI Moderate Particle Pollution (2.5 microns) Tuesday, Nov 10: 65 AQI Moderate Particle Pollution (2.5 microns) Current conditions: **An Air […]

Wildfires can affect air hundreds of miles away

Wildfires can cause temporary large increases in outdoor airborne particles, and substantial increases in gaseous air pollutants such as carbon monoxide, nitrogen dioxide, formaldehyde, and acetaldehyde.  Large wildfires can increase air pollution over thousands of square kilometers [or thousands of square miles]. https://iaqscience.lbl.gov/cc-wildfires#:~:text=Wildfires%20can%20cause%20temporary%20large,acetaldehyde%20%5B40%2D43%5D.

PurpleAir Can Warn of Hazardous Air

I Live in California. How Do I Know It’s Safe to Go Outside? A high-tech sensor network brought me closer to the natural cycles of my environment. NY Times, Sept. 4, 2020. By Annalee Newitz Contributing Opinion Writer

DEP issues a Code Orange Air Quality Action Day for ozone for Monday, August 10, 2020

 The Pennsylvania Department of Environmental Protection (DEP) has issued a Code Orange Air Quality Action Day for ozone for Monday, August 10, 2020, for the counties of Bucks, Chester, Delaware, Montgomery, and Philadelphia in southeastern Pennsylvania, the counties of Cumberland, Dauphin, Lancaster, Lebanon, and York in southcentral Pennsylvania, and the counties of Allegheny, Armstrong, Beaver, […]

CAB installs PM2.5 monitor

The Clean Air Board announced that it has installed a new air quality monitor in downtown Carlisle near the Square.  The PM2.5 sensor will report its readings 24 hours a day.  The real-time data can be viewed on the PurpleAir network.  The PurpleAir™ sensor is a device that uses two laser particle counters to capture […]

CAB files comments on DEP’s proposed methane rules

June 24, 2020 – The Clean Air Board testified at an Environmental Quality Board hearing on DEP’s proposed rules to reduce hydrocarbons and methane leaks from existing oil and gas operations. CAB asked that certain exemptions be removed from the proposed rules. Read CAB’s methane rule comments

DEP Issues a Code Orange Air Quality Action Day Forecast for June 9, 2020

Harrisburg, PA – The Pennsylvania Department of Environmental Protection (DEP) and its regional air quality partnerships have forecast a Code Orange Air Quality Action Day for ozone on June 9, 2020, for southeastern and southcentral Pennsylvania (encompassing the counties of Bucks, Chester, Cumberland, Dauphin, Delaware, Lancaster, Lebanon, Montgomery, Philadelphia, and York). Strong sunshine, temperatures close to […]