A comparison of PM10 monitors at a Kerbside site in the northeast of England

Price, Monica; Bulpitt, Susan; Meyer, M.

doi:10.1016/s1352-2310(03)00582-x

Cited by 19 publications

(13 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…EQPM-1090-079) and is a widely used method for direct measurement of particle concentrations in ambient air sampling conditions. [3][4][5][6][7] When the TEOM monitor is fitted with a TSP inlet, its performance matches that of the EPA reference method on TSP measurement using a high-volume TSP sampler 8 very closely. 9 The use of TEOM monitors in livestock building applications for the determination of pollutant emission rates has been explored recently.…”

Section: Discussionmentioning

confidence: 83%

“…In another study, Price et al 6 compared PM 10 measured with a Rupprecht and Patashnick TEOM monitor series 1400 with European Union reference gravimetric method. Results showed that the two samplers correlate well at low values of PM 10 , but as the dust concentration increases, the gravimetric method recorded higher concentration than the TEOM monitor.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Measured Total Suspended Particulate Matter Concentrations Using Tapered Element Oscillating Microbalance and a Total Suspended Particulate Sampler

Jerez

Zhang

McClure

et al. 2006

Journal of the Air & Waste Management Association

View full text Add to dashboard Cite

A comparison of the concentration of the total suspended particulate (TSP) matter measured by the tapered element oscillating microbalance (TEOM) monitor and the isokinetic TSP samplers developed at the University of Illinois was carried out in several types of confinement livestock buildings. In a majority of the measurements done, the dust concentration measured by the TEOM monitor was lower than the University of Illinois at Urbana-Champaign (UIUC) isokinetic TSP sampler; the TEOM monitor tended to underestimate the total dust concentration by as much as 54%. The difference in measurements can be attributed to the sampling efficiency of the TEOM monitor sampling head and the loss of some semivolatile compounds and particle-bound water because of heating of the TEOM monitor sampling stream to 50°C. Although several articles in the literature supported the latter argument, this study did not investigate the effect of heating the sampling stream or the effect of moisture on the relative difference in dust concentration measurements. The model that best describes the relationship between the two methods was site specific, that is, the linear regression model was applicable only to four of the sites monitored. The measured total dust concentration in livestock buildings range from ϳ300 to 4000 g/m 3 ; a higher correlation coefficient between TEOM-TSP and UIUC-TSP monitors was obtained in swine facilities than those obtained in a laying facility.

show abstract

Section: Discussionmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Comparison of Measured Total Suspended Particulate Matter Concentrations Using Tapered Element Oscillating Microbalance and a Total Suspended Particulate Sampler

Jerez

Zhang

McClure

et al. 2006

Journal of the Air & Waste Management Association

View full text Add to dashboard Cite

show abstract

“…Previous PM 10 comparison studies (Rodes et al, 1985a, b;McFarland and Ortiz, 1985;Sweitzer, 1985;Wedding et al, 1985a, b;Purdue et al, 1986;Mathai et al, 1990;Gertler et al, 1993;Chow, 1995;Tsai, 1995;Tsai and Cheng, 1996;Allen et al, 1997;Hopke et al, 1997;Magliano et al, 1999;Heal et al, 2000;Ono et al, 2000;Williams et al, 2000;Lane et al, 2001;Noack et al, 2001;Motallebi et al, 2003;Price et al, 2003;Salminen and Karlsson, 2003;Charron et al, 2004;Hitzenberger et al, 2004;Muller et al, 2004;Chow et al, 2006;Kingham et al, 2006;Buser et al, 2008;Cheng, 2008;Grimm and Guo et al, 2009;Park et al, 2009) show mixed results with high comparability in laboratory tests and in ambient environments with non-volatile aerosols and minimal levels of coarse particles (i.e., PM 10-2.5 ). Moderate to low comparability was found in sourceoriented environments with large spatial gradients, large coarse particle (PM 10-2.5 ) fractions, and/or high levels of semi-volatile aerosol components.…”

Section: Same-sampler Comparisonsmentioning

confidence: 96%

Measurement System Evaluation for Upwind/Downwind Sampling of Fugitive Dust Emissions

Watson

Chow

Chen

et al. 2011

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

Eight different PM 10 samplers with various size-selective inlets and sample flow rates were evaluated for upwind/ downwind assessment of fugitive dust emissions from two sand and gravel operations in southern California during September through October 2008. Continuous data were acquired at one-minute intervals for 24 hours each day. Integrated filters were acquired at five-hour intervals between 1100 and 1600 PDT on each day because winds were most consistent during this period. High-volume (hivol) size-selective inlet (SSI) PM 10 Federal Reference Method (FRM) filter samplers were comparable to each other during side-by-side sampling, even under high dust loading conditions. Based on linear regression slope, the BGI low-volume (lovol) PQ200 FRM measured ~18% lower PM 10 levels than a nearby hivol SSI in the source-dominated environment, even though tests in ambient environments show they are equivalent. Although the TSI DustTrak DRX PM 10 concentrations did not equal those from the hivol SSI, both instruments were highly correlated (R = 0.9) at the two downwind sites. Multiple size ranges from the TSI DustTrak DRX and Grimm optical particle counters (OPC) allowed the identification of spatial non-uniformity for sources within and outside the facilities. Narrow dust plumes were only detected by some of the continuous instruments across the sampler array. Upwind PM 10 concentrations at one of the locations were higher than the downwind concentrations owing to a high concentration of industrial and vehicular activities. The shorter-duration measurements and quantification of super-coarse (> 10 µm) particles with high deposition velocities available from optical particle counters is needed to evaluate the effects of local emissions on both upwind and downwind samples.

show abstract

“…Immediately following this study, a series of articles, responses, and rebuttals were published to discuss and debate the pros and cons of the TEOM method for various applications (Allen, 1998;Patashnick, 1998aPatashnick, , 1998b. Since then, more studies reported that the TEOM gave lower PM mass concentration measurements as compared with filter-based PM samplers (Ayers et al, 1999;Charrona et al, 2003;Jaques et al, 2004;Lee et al, 2005;Price et al, 2003;Rizzo et al, 2003;Vega et al, 2003). Two plausible reasons discussed extensively from these studies are (1) losses of particulate materials (semivolatile PM and particlebound water) in the TEOM due to its internal heating mechanism; and (2) negative and positive artifacts associated with changes in air mass composition (Allen et al, 1997) or thermal instability of the TEOM system (Page et al, 2007;Patashnick, 1998a).…”

Section: Introductionmentioning

confidence: 99%

“…Co., 2001), (NH 4 ) 2 SO 4 loss correction (Charron et al, 2004;Price et al, 2003) instrument settings change (Rupprecht & Patashnick. Co., 2001), and use of the differential TEOM monitor (Jaques et al, 2004;Patashnick et al, 2001), have been studied.…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of particulate matter measurements using tapered element oscillating microbalance in a layer house

Wang-Li

Liu

et al. 2012

Journal of the Air & Waste Management Association

View full text Add to dashboard Cite

The tapered element oscillating microbalance (TEOM) is one type of continuous ambient particulate matter (PM) monitor. Adsorption and desorption of moisture and semivolatile species may cause positive or negative artifacts in TEOM PM mass measurement. The objective of this field study was to investigate possible uncertainties associated with TEOM measurements in the poultry operation environment. For comparisons of TEOM with filter-based gravimetric method, four instruments (TEOM-PM 10 , low-volume PM 10 sampler, TEOM-PM 2.5 , and PM 2.5 speciation sampler) were collocated and tested inside a poultry house for PM 2.5 and PM 10 (PM with aerodynamic equivalent diameter 2.5 and 10 m, respectively) measurements. Fifteen sets of 24-hr PM 10 concentrations and 13 sets of 24-hr PM 2.5 measurements were obtained. Results indicate that compared with filter-based gravimetric method, TEOM gave significantly lower values of both PM 10 and PM 2.5 mass concentrations. For PM 10 , the average ratio of TEOM to the gravimetric method was 0.936. For PM 2.5 , the average ratio of TEOM to the gravimetric method was 0.738. Particulate matter in the poultry houses possibly contains semivolatile compounds and moisture due to high levels of relative humidity (RH) and gas pollutants. The internal heating mechanism of the TEOM may cause losses in mass through volatilization. To investigate the effects of TEOM settings on concentration measurements, the heaters of two identical TEOMs were set at 50 C, 30 C, or no heating at all. They were collocated and tested for total suspended particle (TSP), PM 10 , and PM 2.5 measurements in layer house for 6 weeks. For all TSP, PM 10 , and PM 2.5 measurements, the internal TEOM temperature setting had a significant effect (P < 0.05). Significantly higher PM mass concentrations were measured at lower temperature settings. The effects of environmental (i.e., temperature, RH, NH 3 and CO 2 concentrations) and instrumental (i.e., filter loading and noise) parameters on PM measurements were also assessed using regression analysis.Implications: Because of its potential health and environmental effects, particulate matter (PM) emissions from animal feeding operations (AFOs) have been a great concern to the public and to the regulatory agencies. The tapered element oscillating microbalance (TEOM) PM monitor has been was adapted for continuous PM measurements in some AFO air quality studies. This study investigated possible uncertainties associated with TEOM measurements in an egg production environment. It was discovered that there was a significant bias in TEOM measurements of PM 10 as compared with federal reference method. Internal temperature settings of a TEOM have significant impact on its PM measurement.

show abstract

A comparison of PM10 monitors at a Kerbside site in the northeast of England

Cited by 19 publications

References 20 publications

Comparison of Measured Total Suspended Particulate Matter Concentrations Using Tapered Element Oscillating Microbalance and a Total Suspended Particulate Sampler

Comparison of Measured Total Suspended Particulate Matter Concentrations Using Tapered Element Oscillating Microbalance and a Total Suspended Particulate Sampler

Measurement System Evaluation for Upwind/Downwind Sampling of Fugitive Dust Emissions

Field evaluation of particulate matter measurements using tapered element oscillating microbalance in a layer house

Contact Info

Product

Resources

About