Air Quality Action Alert for Friday, July 6 in Susquehanna Valley

Friday, Jul 6: 110 AQI Unhealthy for Sensitive Groups Ozone
55 AQI Moderate Particle Pollution (2.5 microns)
Current Conditions as of 2 PM on Tuesday: A weak area of high pressure that was overhead this morning has begun to move north and east. This system was responsible for the mostly sunny skies that we had seen earlier today. This system is being forced northeast by an approaching warm front. The warm front, associated with a low pressure system currently sitting over central Canada, will pass through this evening bringing showers and a possible thunderstorm overnight and into Wednesday. ***Independence Day Forecast: Partly cloudy skies, but hot and humid with a high in the mid-90s. Spotty showers and the chance for convective storm development remain for most of the mid-week holiday. A cold front, also associated with the low, will drive the warm front northeast and have its chance to pass through the region Wednesday afternoon. Depending on how widespread these storms are, Code Orange air quality is possible. With the combination of westerly transport, high dew points, and temperatures remaining above seasonable, both ozone and PM 2.5 will be on the rise into at least the moderate range. ***Thursday’s Forecast: Following that secondary frontal passage, a large area of high pressure will bring an end to any remaining showers on Thursday morning. The chance for some convective storm activity remains for the afternoon as we transition between systems. A drier air mass will be in store as winds turn northwesterly around the circulation of the high that will settle in. Mostly sunny skies and temperatures above normal are expected. Some inconsistencies among the models are leaving air quality levels questionable. PM 2.5 should remain in the low to mid-moderate range as dew points dip back into the mid-60s and northwesterly winds limit transport. On the other hand, ozone holds the potential of reaching Code Orange depending on the arrival time and positioning of the high pressure system. For now, expect upper moderate levels. Stay tuned as the forecast will updated as necessary. ***Extended Outlook: Friday will again be mostly sunny with a high in the low 90s. We can expect to see Code Orange levels reached throughout the forecast area. PM concentrations will be limited to the upper good threshold on Friday as northerly transport will be in control. Similar conditions are expected for Saturday until a frontal system passes through in the evening. This frontal passage should occur late Saturday and bring showers overnight. We may see some lingering showers on Sunday, but should quickly clear out by noon. This will allow both ozone and PM to settle back into the moderate range. Expect a clear and comfortable start to next week as temperatures dip back to seasonable following the frontal passage. –Brown


This forecast is brought to you by the Pennsylvania Department of Environmental Protection (PA DEP) and the Air Quality Partnership of the Susquehanna Valley.

* You can follow the Susquehanna Valley air quality forecast on Follow the Susquehanna Valley air quality forecast on Twitter and Follow the Susquehanna Valley Air Quality Partnership on Facebook

Air Quality Action Day Declared for Susquehanna Valley on May 30 and 31

Monday, May 30: 107 AQI Unhealthy for Sensitive Groups Ozone
75 AQI Moderate Particle Pollution (2.5 microns)
Tuesday, May 31: 110 AQI Unhealthy for Sensitive Groups Ozone
77 AQI Moderate Particle Pollution (2.5 microns)

Monday’s forecast: For Monday, Memorial Day, a ridge of high pressure will be firmly in control of our weather. Fine particulate levels will again go well into the moderate range, but ozone levels can attain code ORANGE status with temperatures in the lower 90s. *** Tuesday’s forecast: Our weather will not change much from Monday to Tuesday with a good deal of sunshine and continued hot air. Highs in the lower 90s once more with possible code ORANGE ozone levels.

This forecast is brought to you by the Pennsylvania Department of Environmental Protection (PA DEP) and the Air Quality Partnership of the Susquehanna Valley.

The Pennsylvania State Clean Diesel Grant Program

The goal of the grant program is to improve Pennsylvania’s air quality by decreasing emissions from diesel-powered transit and school bus fleets that operate throughout the Commonwealth.  The program will support projects that retrofit, re-power or replace diesel-powered fleet vehicles to lower emissions of pollutants; purchase and install idle reduction technology; or purchase clean alternatively-fueled fleet vehicles.  The grant announcement was published in the February 12, 2011, issue of the Pennsylvania Bulletin. (41 Pa.B. 908.)  The Department will be accepting applications beginning February 14 and closing on April 14, 2011.  For additional information, please refer to the Eligibility and Evaluation Criteria and the PA State Clean Diesel Grant Program Guidelines and Application.

Diesel Pollution, School Buses and Children’s Health (Video)

Diesel Pollution, School Buses and Children’s Health

Air Pollution from diesel vehicles can affect everyone, especially children.

Video produced by the PA Department of Environmental Protection

DEP to Consider Truck Idling Limits for State: Patriot News

May 6, 2007: The Patriot News

Agency to Consider Truck Idling Limits for State (Archive Fee Required)

by Charles Thompson


Air-quality experts at the state Department of Environmental Protection are recommending a statewide rule that would limit idling by trucks and the diesel exhaust they generate. The proposed rule would attack the common trucking industry practice in which drivers keep their trucks running during mandatory 10-hour rest stops to heat or air condition their cabs and to power television, Internet access and other comforts.

State to Monitor Air Closer to Downtown Carlisle: Sentinel News

March 8, 2007: The Sentinel News

State to Monitor Air Closer to Downtown Carlisle

by David Blymire

Excerpt: A year-long air pollution monitoring station in the west end of Carlisle will fill a void in what is known about the area’s air quality, state officials and activists say.

State officials have identified a site on private property along Walnut Street where a new monitoring station will measure fine particulate matter, a type of air pollution resulting from auto and truck emissions, factories and other sources that can lodge deeply inside the lungs, state officials said.

News of the announcement was hailed by the Clean Air Board of Central Pennsylvania, whose members worked with DEP officials to identify the location.

“I’m really thankful for DEP’s responsiveness,” said President Jennifer McKenna. “We asked for this last year. We’re really trying to distinguished the toxic nature of diesel particulate matter, which is more toxic than other particulate matter.”

IdleAir System Powers Up to Reduce Idling by 260,000 Gallons of Fuel Per Year: Sentinel News

August 10th, 2006: The Sentinel News

With Just the Flick of a Switch…

By John Hilton

Excerpt:  Customers and neighbors have long dreamed of eliminating the noise, fumes and vibrations generated by truckstops with the flick of a switch.

Kathleen McGinty did just that Wednesday morning at the Petro truck stop in Middlesex Township.

McGinty — secretary of the state Department of Environmental Protection — powered up the innovative IdleAire electrification system, installed with $940,000 in state grants.

With the $1.2 million 72-station system is in place, drivers will be able to “plug in” their parked rigs and enjoy all the comforts of home. In addition, IdleAire estimates the system will save over 260,000 gallons of fuel per year.


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