**To :**  **Cc: Bcc**  **: Subject:**  **Fw: Diett e - Response to REQUEST FOR PM AIR QUALITY DATA** 

**To: Beth Hassett-Sipple/RTP/USEPA/US@EPA From: Greg Diette <gdiette@**  **jhmi .edu>**  **Date: 06/25/2009 03:49PM Subject: RE: Authors of recent U.S. and Canadian epidemiological studies evaluating health effects**  **associated with exposure to fine and thoracic coarse particles REQUEST FOR PM AIR QUALITY DATA**



### Hopefully this has what you need. Greg Diette

From: Hassett-Sipple.Beth@epamail.epa.gov [mailto:Hassett-Sipple.Beth@epamail.epa.gov] Sent: Wednesday, June 24, 2009 11:49 AM To: Greg Diette Subject: RE: Authors of recent U.S. and Canadian epidemiological studies evaluating health effects associated with exposure to fine and thoracic coarse particles REQUEST FOR PM AIR QUALITY DATA
Dr. Diette, thank you for providing this information to us. The air quality percentile values that you presented in your attached file included 95th and 99th percentile values. Could you also provide us with 96th, 97th, and 98th percentiles? Thank you again for your assistance. Regards, Beth Beth M. Hassett-Sipple Environmental Health Scientist Ambient Standards Group (C504-06) Health and Environmental Impacts Division Office of Air Quality Planning and Standards U.S. Environmental Protection Agency 109 TW Alexander Drive RTP, NC 27711 (919) 541-4605 Hassett-Sipple.Beth@epa.gov (919) 541-0237 (FAX)

From: Greg Diette <gdiette@ jhmi .edu> To: Beth Hassett-Sipple/RTP/USEPA/US@EPA Date: 06/22/2009 02:48 PM Subje c t: RE: Authors of recent U .S. and Canadian epidemiological studies evaluating health effects associated with exposure to fine and thoracic coarse particles REQUEST FOR PM AIR QUALITY DATA
**Dear Beth, I've attached the PM 2.5 data you requested that are relevant for our study. Hope this is helpful and please let me know if you need something further. Best, Greg Diette** [ attachment " eparequest 2

_ 061609

. log " deleted by Beth

Hassett-Sipple/RTP/USEPA/US]eparequest3_062509

-------------------------------------------------------------------------------- log: F:\eparequest_062509.log log type: text opened on: 25 Jun 2009, 15:05:19 . summ amb25nodups, detail amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.625 3.22 5% 4.9 3.455 10% 5.631429 3.582 Obs 339 25% 7.793334 3.625 Sum of Wgt. 339 50% 11.3825 Mean 12.42657 Largest Std. Dev. 6.43605 75% 15.4925 34.1275 90% 20.13 36.066 Variance 41.42273 95% 24.88333 38.1075 Skewness 1.478915 99% 34.1275 45.2 Kurtosis 6.284014 . centile amb25nodups, centile(96 97 98) -- Binom. Interp. -- Variable | Obs Percentile Centile [95% Conf. Interval] -------------+------------------------------------------------------------- amb25nodups | 339 96 25.972 23.94835 31.23936 | 97 28.655 24.80073 33.53881 | 98 32.0165 27.13503 36.76867
. sort year . by year:summ amb25nodups, detail

-------------------------------------------------------------------------------- -> year = 2001 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 6.845 6.845 5% 6.845 6.8675 10% 6.8675 8.875 Obs 16 25% 9.787917 9.753333 Sum of Wgt. 16 50% 15.18125 Mean 15.69516 Largest Std. Dev. 6.750165 75% 20.395 21.7675 90% 23.91 23.57667 Variance 45.56473 95% 30.1375 23.91 Skewness .4829445 99% 30.1375 30.1375 Kurtosis 2.415006

-------------------------------------------------------------------------------- -> year = 2002 amb25nodups

------------------------------------------------------------- Percentiles Smallest Page 1eparequest3_062509

1% 6 5.903333 5% 7.495 6 10% 8.7725 6.4525 Obs 151 25% 10.49 6.55 Sum of Wgt. 151 50% 12.91 Mean 15.01009 Largest Std. Dev. 6.804114 75% 17.71 34.1275 90% 24.27333 36.066 Variance 46.29597 95% 28.7525 38.1075 Skewness 1.610936 99% 38.1075 45.2 Kurtosis 6.114968

-------------------------------------------------------------------------------- -> year = 2003 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.73 3.582 5% 4.826667 3.73 10% 5.4125 3.7875 Obs 127 25% 6.106667 4.061666 Sum of Wgt. 127 50% 9.3725 Mean 10.42528 Largest Std. Dev. 4.949005 75% 13.5425 20.055 90% 16.485 21.514 Variance 24.49265 95% 18.026 28.265 Skewness 1.366636 99% 28.265 33.54 Kurtosis 6.317672

-------------------------------------------------------------------------------- -> year = 2004 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.22 3.22 5% 3.625 3.455 10% 3.966667 3.625 Obs 45 25% 5.1425 3.85 Sum of Wgt. 45 50% 6.83 Mean 8.243345 Largest Std. Dev. 4.295927 75% 10.5675 15.57 90% 15.45256 16.74 Variance 18.45499 95% 16.74 18.825 Skewness 1.043647 99% 19.225 19.225 Kurtosis 3.088147 . by year:centile amb25nodups, centile(96 97 98)

-------------------------------------------------------------------------------- -> year = 2001 -- Binom. Interp. -- Variable | Obs Percentile Centile [95% Conf. Interval] -------------+------------------------------------------------------------- amb25nodups | 16 96 30.1375 23.57899 30.1375* | 97 30.1375 23.64153 30.1375* | 98 30.1375 23.77307 30.1375* * Lower (upper) confidence limit held at minimum (maximum) of sample Page 2eparequest3_062509

-------------------------------------------------------------------------------- -> year = 2002 -- Binom. Interp. -- Variable | Obs Percentile Centile [95% Conf. Interval] -------------+------------------------------------------------------------- amb25nodups | 151 96 31.61973 25.16166 37.66984 | 97 33.75915 27.267 43.04297 | 98 36.02723 29.9789 45.2* * Lower (upper) confidence limit held at minimum (maximum) of sample

-------------------------------------------------------------------------------- -> year = 2003 -- Binom. Interp. -- Variable | Obs Percentile Centile [95% Conf. Interval] -------------+------------------------------------------------------------- amb25nodups | 127 96 19.2489 16.99337 30.08927 | 97 20.28844 17.52038 33.27604 | 98 24.48444 18.15059 33.54* * Lower (upper) confidence limit held at minimum (maximum) of sample

-------------------------------------------------------------------------------- -> year = 2004 -- Binom. Interp. -- Variable | Obs Percentile Centile [95% Conf. Interval] -------------+------------------------------------------------------------- amb25nodups | 45 96 18.873 14.7803 19.225* | 97 19.061 15.4941 19.225* | 98 19.225 15.83656 19.225*

Page 3**To :**  **Cc: Bcc:**  **Subject: Fw: Deitte Response to Request for PM Air Quality Data June 22nd 2009** 

**From: Greg Diette <gdiette@**  **jhmi .edu>**  **To: Beth Hassett-Sipple/RTP/USEPA/US@EPA**  **Date: 06/22/2009 02:48 PM**  **Subject: RE: Authors of recent U.S. and Canadian epidemiological studies evaluating health effects** 

**associated with exposure to fine and thoracic coarse particles REQUEST FOR PM AIR QUALITY DATA** 

Dear Beth, I've attached the PM 2.5 data you reques ted that are relevant for our study. Hope this is helpful and please let me k now if you need something further. Best, Greg Dietteeparequest2_061609

BIESAK Study EPA Data Request - Ambient PM 2.5 June 16, 2009

-------------------------------------------------------------------------------- log: F:\eparequest_061609.log log type: text opened on: 16 Jun 2009, 15:05:19 . summ amb25nodups, detail amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.625 3.22 5% 4.9 3.455 10% 5.631429 3.582 Obs 339 25% 7.793334 3.625 Sum of Wgt. 339 50% 11.3825 Mean 12.42657 Largest Std. Dev. 6.43605 75% 15.4925 34.1275 90% 20.13 36.066 Variance 41.42273 95% 24.88333 38.1075 Skewness 1.478915 99% 34.1275 45.2 Kurtosis 6.284014 . sort year . by year:summ amb25nodups, detail

-------------------------------------------------------------------------------- -> year = 2001 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 6.845 6.845 5% 6.845 6.8675 10% 6.8675 8.875 Obs 16 25% 9.787917 9.753333 Sum of Wgt. 16 50% 15.18125 Mean 15.69516 Largest Std. Dev. 6.750165 75% 20.395 21.7675 90% 23.91 23.57667 Variance 45.56473 95% 30.1375 23.91 Skewness .4829445 99% 30.1375 30.1375 Kurtosis 2.415006

-------------------------------------------------------------------------------- -> year = 2002 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 6 5.903333 5% 7.495 6 10% 8.7725 6.4525 Obs 151 25% 10.49 6.55 Sum of Wgt. 151 Page 1eparequest2_061609

50% 12.91 Mean 15.01009 Largest Std. Dev. 6.804114 75% 17.71 34.1275 90% 24.27333 36.066 Variance 46.29597 95% 28.7525 38.1075 Skewness 1.610936 99% 38.1075 45.2 Kurtosis 6.114968

-------------------------------------------------------------------------------- -> year = 2003 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.73 3.582 5% 4.826667 3.73 10% 5.4125 3.7875 Obs 127 25% 6.106667 4.061666 Sum of Wgt. 127 50% 9.3725 Mean 10.42528 Largest Std. Dev. 4.949005 75% 13.5425 20.055 90% 16.485 21.514 Variance 24.49265 95% 18.026 28.265 Skewness 1.366636 99% 28.265 33.54 Kurtosis 6.317672

-------------------------------------------------------------------------------- -> year = 2004 amb25nodups

------------------------------------------------------------- Percentiles Smallest 1% 3.22 3.22 5% 3.625 3.455 10% 3.966667 3.625 Obs 45 25% 5.1425 3.85 Sum of Wgt. 45 50% 6.83 Mean 8.243345 Largest Std. Dev. 4.295927 75% 10.5675 15.57 90% 15.45256 16.74 Variance 18.45499 95% 16.74 18.825 Skewness 1.043647 99% 19.225 19.225 Kurtosis 3.088147

Ambient PM for the study was measured at a central site located within the study area using standard methods (U.S. EPA 1997). PM2.5 was collected using the PM2.5 Partisol-Plus model 2025 FRM sequential air sampler (Rupprecht & Patashnick Co. Inc., Albany, NY) and PM10 using a tapered element oscillating microbalance (TEOM 1400; Rupprecht & Patashnick).

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