PMID- 32525662
OWN - NLM
STAT- MEDLINE
DCOM- 20201112
LR  - 20201112
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 54
IP  - 13
DP  - 2020 Jul 7
TI  - Comparison of Mobile and Fixed-Site Black Carbon Measurements for High-Resolution 
      Urban Pollution Mapping.
PG  - 7848-7857
LID - 10.1021/acs.est.0c01409 [doi]
AB  - Urban concentrations of black carbon (BC) and other primary pollutants vary on 
      small spatial scales (<100m). Mobile air pollution measurements can provide 
      information on fine-scale spatial variation, thereby informing exposure 
      assessment and mitigation efforts. However, the temporal sparsity of these 
      measurements presents a challenge for estimating representative long-term 
      concentrations. We evaluate the capabilities of mobile monitoring in the 
      represention of time-stable spatial patterns by comparing against a large set of 
      continuous fixed-site measurements from a sampling campaign in West Oakland, 
      California. Custom-built, low-cost aerosol black carbon detectors (ABCDs) 
      provided 100 days of continuous measurements at 97 near-road and 3 background 
      fixed sites during summer 2017; two concurrently operated mobile laboratories 
      collected over 300 h of in-motion measurements using a photoacoustic 
      extinctiometer. The spatial coverage from mobile monitoring reveals patterns 
      missed by the fixed-site network. Time-integrated measurements from mobile lab 
      visits to fixed-site monitors reveal modest correlation (spatial R(2) = 0.51) 
      with medians of full daytime fixed-site measurements. Aggregation of mobile 
      monitoring data in space and time can mitigate high levels of uncertainty 
      associated with measurements at precise locations or points in time. However, 
      concentrations estimated by mobile monitoring show a loss of spatial fidelity at 
      spatial aggregations greater than 100 m.
FAU - Chambliss, Sarah E
AU  - Chambliss SE
AUID- ORCID: 0000-0002-6170-1789
AD  - Department of Civil, Architectural and Environmental Engineering, University of 
      Texas at Austin, Austin, Texas 78712, United States.
FAU - Preble, Chelsea V
AU  - Preble CV
AUID- ORCID: 0000-0002-6489-5718
AD  - Department of Civil and Environmental Engineering, University of California, 
      Berkeley, Berkeley, California 94720, United States.
AD  - Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, 
      California 94720, United States.
FAU - Caubel, Julien J
AU  - Caubel JJ
AD  - Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, 
      California 94720, United States.
AD  - Department of Mechanical Engineering, University of California, Berkeley, 
      Berkeley, California 94720, United States.
FAU - Cados, Troy
AU  - Cados T
AD  - Department of Civil and Environmental Engineering, University of California, 
      Berkeley, Berkeley, California 94720, United States.
AD  - Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, 
      California 94720, United States.
FAU - Messier, Kyle P
AU  - Messier KP
AUID- ORCID: 0000-0001-9508-9623
AD  - Department of Civil, Architectural and Environmental Engineering, University of 
      Texas at Austin, Austin, Texas 78712, United States.
AD  - Environmental Defense Fund, Austin, Texas 78701, United States.
FAU - Alvarez, Ramon A
AU  - Alvarez RA
AD  - Environmental Defense Fund, Austin, Texas 78701, United States.
FAU - LaFranchi, Brian
AU  - LaFranchi B
AD  - Aclima, Inc., 10 Lombard Street, San Francisco, California 94111, United States.
FAU - Lunden, Melissa
AU  - Lunden M
AD  - Aclima, Inc., 10 Lombard Street, San Francisco, California 94111, United States.
FAU - Marshall, Julian D
AU  - Marshall JD
AUID- ORCID: 0000-0003-4087-1209
AD  - Department of Civil and Environmental Engineering, University of Washington, 
      Seattle, Washington 98195, United States.
FAU - Szpiro, Adam A
AU  - Szpiro AA
AD  - Department of Biostatistics, University of Washington, Seattle, Washington 98195, 
      United States.
FAU - Kirchstetter, Thomas W
AU  - Kirchstetter TW
AD  - Department of Civil and Environmental Engineering, University of California, 
      Berkeley, Berkeley, California 94720, United States.
AD  - Energy Technologies Area, Lawrence Berkeley National Laboratory, Berkeley, 
      California 94720, United States.
FAU - Apte, Joshua S
AU  - Apte JS
AUID- ORCID: 0000-0002-2796-3478
AD  - Department of Civil, Architectural and Environmental Engineering, University of 
      Texas at Austin, Austin, Texas 78712, United States.
AD  - Department of Civil and Environmental Engineering, University of California, 
      Berkeley, Berkeley, California 94720, United States.
AD  - School of Public Health, University of California, Berkeley, Berkeley, California 
      94720, United States.
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20200624
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Air Pollutants)
RN  - 0 (Particulate Matter)
RN  - 0 (Soot)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - *Air Pollutants/analysis
MH  - *Air Pollution/analysis
MH  - Carbon
MH  - Environmental Monitoring
MH  - Particulate Matter/analysis
MH  - Soot/analysis
EDAT- 2020/06/12 06:00
MHDA- 2020/11/13 06:00
CRDT- 2020/06/12 06:00
PHST- 2020/06/12 06:00 [pubmed]
PHST- 2020/11/13 06:00 [medline]
PHST- 2020/06/12 06:00 [entrez]
AID - 10.1021/acs.est.0c01409 [doi]
PST - ppublish
SO  - Environ Sci Technol. 2020 Jul 7;54(13):7848-7857. doi: 10.1021/acs.est.0c01409. 
      Epub 2020 Jun 24.