More bad air days …..

"We need to start looking at daily death rates in Delaware to see how they are correlated with weather and air quality."

Monday, Aug 9, 2010 is an Orange Alert bad air day.

Green Delaware would call this Code Red because of the multiple risk factors.

The DNREC says: "A Code Orange air quality forecast, whether for ozone or PM, is a level of pollution that can be unhealthy for sensitive groups, such as young children, the elderly, and those with heart and/or respiratory conditions."

NORTHERN DELAWARE
(New Castle County including City of Wilmington)

Ozone:  CODE ORANGE (UNHEALTHY FOR SENSITIVE GROUPS)
Fine Particles (PM2.5): YELLOW (MODERATE)

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SOUTHERN DELAWARE
(Kent and Sussex Counties including City of Dover)

Ozone:  CODE YELLOW (MODERATE)
Fine Particles (PM2.5): CODE YELLOW (MODERATE)

Green Delaware says this is actually a Code Red day–unhealthy for everybody–given the combination of ozone, particles, heat, and humidity.

Code orange is also forecast for Tuesday, Aug. 10, 2010

The official forecast for Wed. Aug. 11 is Code Yellow:

Green Delaware would call this Code Red because of the multiple risk factors.

State of Delaware Air Quality Forecast for:
Wednesday, August 11, 2010

_________________________________________________________

NORTHERN DELAWARE
(New Castle County including City of Wilmington)

Ozone:  CODE YELLOW (MODERATE)
Fine Particles (PM2.5): CODE YELLOW (MODERATE)

_________________________________________________________

SOUTHERN DELAWARE
(Kent and Sussex Counties including City of Dover)

Ozone:  CODE YELLOW (MODERATE)
Fine Particles (PM2.5): CODE YELLOW (MODERATE)

_________________________________________________________

Discussion:

Warm and slightly less humid Wednesday as a weak frontal boundary drops through the state.  Ozone concentrations will remain elevated but a slightly cleaner air mass arriving from the north along with increased cloud cover will keep peak concentrations just within the moderate range.  PM will slowly decrease in a less humid air mass but remain in the moderate range.

Onshore flow becomes established Thursday and continues Friday. Ozone will decrease further but remain in the moderate range Thursday and drop further to the good range with overcast skies on Friday. PM will also decrease into the good range in southern Delaware Thursday and the entire state will be in the good range on Friday.

-Ryan/Bradbury

Climate change and extreme weather. 

Climate change is producing is an increase in extreme weather conditions.  These can be heat, rains, hurricanes, or blizzards.  Yes, the extremes can go both ways, so the heavy snows in the Mid-atlantic area last winter are consistent with the global climate change we are experiencing.

In papers I have seen today are stories of floods in Pakistan, China, and North America.  Unprecedented heat in Russia is associated with "doubled" death rates.

We need to start looking at daily death rates in Delaware to see how they are correlated with weather and air quality.

Alan Muller

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