FN Archimer Export Format
PT J
TI Multi-isotope approach of Pb, Cu and Zn in urban aerosols and anthropogenic sources improves tracing of the atmospheric pollutant sources in megacities
BT 
AF SOUTO-OLIVEIRA, C. E.
   BABINSKI, M.
   FERREIRA ARAUJO, Daniel
   WEISS, D. J.
   RUIZ, I. R.
AS 1:1,2;2:1;3:3;4:4,5;5:1;
FF 1:;2:;3:PDG-RBE-BE-LBCM;4:;5:;
C1 Univ Sao Paulo, Inst Geociencias, Ctr Pesquisas Geocronol, Rua Lago 562, Sao Paulo, SP, Brazil.
   Environ Finger Solut Consultoria Solucoes Ltda, Ave Flora 463,Apto 12, BR-06053040 Osasco, SP, Brazil.
   Ctr Atiantique, IFREMER, Lab Biogeochim Contaminants Metall, F-44311 Nantes 3, France.
   Imperial Coll London, Earth Sci & Engn, London SW7 2AZ, England.
   Nat Hist Museum, London SW7 5PD, England.
C2 UNIV SAO PAULO, BRAZIL
   ENVIRON FINGER SOLUT CONSULTORIA SOLUCOES LTDA, BRAZIL
   IFREMER, FRANCE
   IMPERIAL COLL LONDON, UK
   NHM, UK
SI NANTES
SE PDG-RBE-BE-LBCM
IN WOS Ifremer UPR
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 4.039
TC 84
UR https://archimer.ifremer.fr/doc/00466/57815/60100.pdf
LA English
DT Article
DE ;Multi-isotope systems;Ion exchange chromatography;Pb, Cu, Zn isotopes;Non-traditional isotopes;Aerosol;Reference material;Urban pollution;Atmosphere;Source tracing
AB Studies including multiple isotope systems in aerosols promises unparalleled insights into sources and pathways of metals in the atmosphere. However, such studies remain rare because of the challenges associated with small sample sizes and low analyte masses of the target elements. Here, we present the first study combining accurate and precise determination of Pb, Cu and Zn isotopic ratios in aerosols and anthropogenic materials collected in São Paulo, Brazil. We use a sequential ion chromatography procedure with two different resins for the separation and purification of the analytes. Multi collector mass spectrometry is used for the accurate and precise determination of the isotope ratios. Long term analytical reproducibilities are ±0.035 for 206Pb/204Pb, ± 0.13‰ for δ65CuNIST and ±0.1‰ for δ66ZnJMC (±2σ). Accuracy is assessed using certified reference materials (CRM NIST 2783 aerossol, BRP-1 and others). We analyzed 57 source samples (road dust, tires, cement, road tunnel aerosol) and 113 aerosol samples collected between 2013 and 2015. The results for São Paulo are critically compared with previously published data from studies conducted in São Paulo, London and Barcelona. The key findings are: 1. The isotope signatures for Zn in tires (δ66ZnJMC = 0.16 ± 0.14, 2σ, n = 9) and road dust (δ66ZnJMC = 0.17 ± 0.19, 2σ, n = 13) are similar in São Paulo and London suggesting that this isotope system can be used as element specific tracers for non-exhaust traffic. 2. 206Pb/207Pb vs δ66ZnJMC and δ66ZnJMC vs δ65CuNIST multi-isotopic diagrams successfully separate wear off from cars including tires and brakes, car exhaust, industrial emissions and cement sources and improves the discrimination of air pollutant sources. 3. The source identification based on isotope ratios agrees source apportionement based on emissions inventory from these cities. 4. We present Pb, Cu and Zn isotopic data for the first time for the CRM NIST 2783 and BRP-1. These new data will enable future intercalibration and quality controls in other laboratories. Our study confirms that stable isotope ratio analysis have a great potential for element specific source characterization (e.g., separating non combustion traffic sources from combustion sources) for Cu, Zn and Pb. 
PY 2019
PD FEB
SO Atmospheric Environment
SN 1352-2310
PU Pergamon-elsevier Science Ltd
VL 198
UT 000455693900039
BP 427
EP 437
DI 10.1016/j.atmosenv.2018.11.007
ID 57815
ER

EF