EPA STAR 2 - Source-specific health effects of ultrafine and fine particles

Within this project for a subgroup of 112 participants personal measurements of ultrafine particles as well as temperature, humidity and noise were conducted in up to four visits.

The personal number concentration was measured with a portable condensation particle counter (CPC) model 3007 (TSI Inc., USA) which covered a diameter range from 10 nm to 1 µm and can count particles up to 100,000 particles/cm3. In addition, the personal measurements include the recording of temperature and relative humidity (Data logger, model Tinytalk 2, Gemini Data Loggers Ltd., UK) as well as the noise level (Noise Dosimeter, model Spark 703, Larson Davies, USA). The measurement range of the data loggers were -10 to 40°C and 0 to 100% for temperature and relative humidity, respectively. The measurement range of the noise dosimeter was 40 to 143 dB.

All participants were asked to keep a diary on their activities during the 5 – 6 hours of personal measurements. Usually, measurements were carried out from around 7:30 a.m. to 1 p.m., during which time participants were free to go wherever they liked. Participants had also been instructed on how to restart the measurements if tilting might have resulted in an automated measurement stop.

Three portable condensation particle counters were employed during the study. All of them were serviced before the start of the study and twice during the study. Moreover, comparison measurements between all personal CPCs and a quality assured size spectrometer at the central measurement site were conducted on a regular basis resulting in seven comparison measurements. Besides of these quality checks the zero point was checked before and after a participant used the device.

Related publications:

  • Hampel, R., S. Breitner, A. Schneider, W. Zareba, U. Kraus, J. Cyrys, U. Geruschkat, P. Belcredi, M. Müller, H.-E. Wichmann, A. Peters:
    Acute air pollution effects on heart rate variability are modified by SNPs involved in cardiac rhythm in individuals with diabetes or impaired glucose tolerance.
    Environmental Research, 112, 177-185, 2012.

  • Schäuble, C., R. Hampel, S. Breitner, R. Rückerl, R. Phipps, D. Diaz-Sanchez, R. B Devlin, J. D Carter, J. Soukup, R. Silbajoris, L. Daily, W. Koenig, J. Cyrys, U. Geruschkat, P. Belcredi, U. Kraus, A. Peters, A. Schneider:
    Short-term Effects of Air Temperature on Blood Markers of Coagulation and Inflammation in Potentially Susceptible Individuals.
    Occup. Environ. Med., 69, 670–678, 2012.

  • Gu, J., U. Kraus, U., Schneider, A., Hampel, R., Pitz, M., Breitner, S., Wolf, K., Hänninen, O., Peters, A., Cyrys, J:
    Personal day-time exposure to ultrafine particles in different microenvironments.
    International Journal of Hygiene and Environmental Health 2015, 218 (2): 188-195.

  • Kraus, U., Breitner, S., Hampel, R., Wolf, K., Cyrys, J., Geruschkat, U., Gu, J., Peters, A., Schneider, A.:
    Individual daytime noise exposure in different microenvironments.
    Environmental Research 2015, 140: 479-487.

  • Fensterer, V., Küchenhoff, H., Maier, V., Pitz, M., Cyrys, J., Breitner, S., Schneider, A., Geruschkat, U., Peters, A.:
    Personal exposure to ultrafine particles: Two-level statistical 1 modeling of background exposure and 2 time-activity patterns during three seasons.
    Journal of Exposure Analysis and Environmental Epidemiology 2016, 26: 17-25.

For more information related to this project please refer to EPA STAR 2 project description of Research Group "Environmental Risks".

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