PMID- 32121462
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20200305
LR  - 20240328
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 20
IP  - 5
DP  - 2020 Feb 29
TI  - Validation of Low-Cost Sensors in Measuring Real-Time PM(10) Concentrations at 
      Two Sites in Delhi National Capital Region.
LID - 10.3390/s20051347 [doi]
LID - 1347
AB  - In the present study, we assessed for the first time the performance of our 
      custom-designed low-cost Particulate Matter (PM) monitoring devices (Atmos) in 
      measuring PM(10) concentrations. We examined the ambient PM(10) levels during an 
      intense measurement campaign at two sites in the Delhi National Capital Region 
      (NCR), India. In this study, we validated the un-calibrated Atmos for measuring 
      ambient PM(10) concentrations at highly polluted monitoring sites. PM(10) 
      concentration from Atmos, containing laser scattering-based Plantower PM sensor, 
      was comparable with that measured from research-grade scanning mobility particle 
      sizers (SMPS) in combination with optical particle sizers (OPS) and aerodynamic 
      particle sizers (APS). The un-calibrated sensors often provided accurate PM(10) 
      measurements, particularly in capturing real-time hourly concentrations 
      variations. Quantile-Quantile plots (QQ-plots) for data collected during the 
      selected deployment period showed positively skewed PM(10) datasets. Strong 
      Spearman's rank-order correlations (r(s) = 0.64-0.83) between the studied 
      instruments indicated the utility of low-cost Plantower PM sensors in measuring 
      PM(10) in the real-world context. Additionally, the heat map for weekly datasets 
      demonstrated high R(2) values, establishing the efficacy of PM sensor in PM(10) 
      measurement in highly polluted environmental conditions.
FAU - Sahu, Ravi
AU  - Sahu R
AUID- ORCID: 0000-0003-0430-8005
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
FAU - Dixit, Kuldeep Kumar
AU  - Dixit KK
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
FAU - Mishra, Suneeti
AU  - Mishra S
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
FAU - Kumar, Purushottam
AU  - Kumar P
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
FAU - Shukla, Ashutosh Kumar
AU  - Shukla AK
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
FAU - Sutaria, Ronak
AU  - Sutaria R
AD  - Centre for Urban Science and Engineering, Indian Institute of Technology Bombay, 
      Mumbai, Maharashtra 400076, India.
FAU - Tiwari, Shashi
AU  - Tiwari S
AD  - Department of Civil Engineering, Manav Rachna International Institute of Research 
      and Studies, Faridabad, Haryana 121004, India.
FAU - Tripathi, Sachchida Nand
AU  - Tripathi SN
AD  - Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur, 
      Uttar Pradesh 208016, India.
LA  - eng
GR  - IUSSTF/WAQM-Air Quality Project-IIT Kanpur/2017/Department of Science and 
      Technology, Ministry of Science and Technology/
PT  - Journal Article
DEP - 20200229
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
SB  - IM
PMC - PMC7085545
OTO - NOTNLM
OT  - PM10
OT  - data merging tool
OT  - data validation
OT  - low-cost sensors
OT  - real-time monitoring
OT  - urban air pollution
COIS- The authors declare no conflict of interest.
EDAT- 2020/03/04 06:00
MHDA- 2020/03/04 06:01
PMCR- 2020/03/01
CRDT- 2020/03/04 06:00
PHST- 2019/12/16 00:00 [received]
PHST- 2020/02/17 00:00 [revised]
PHST- 2020/02/19 00:00 [accepted]
PHST- 2020/03/04 06:00 [entrez]
PHST- 2020/03/04 06:00 [pubmed]
PHST- 2020/03/04 06:01 [medline]
PHST- 2020/03/01 00:00 [pmc-release]
AID - s20051347 [pii]
AID - sensors-20-01347 [pii]
AID - 10.3390/s20051347 [doi]
PST - epublish
SO  - Sensors (Basel). 2020 Feb 29;20(5):1347. doi: 10.3390/s20051347.