KaydedilenlerDerginizi ekleyin

Dergiler / Atmospheric Pollution Research / 2019 / Cilt: 10 - Sayı: 2

Passive sampler-derived concentrations of PAHs in air and water along Brazilian mountain transects

R.O. MEIRE
M. KHAIRY
Dave ALDEMAN
P.M.A GALVAO
J.P.M. TORES
O. MALM
R. LOHMANN
Sayfa
635–641
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

However, local PAH emission sources probably explain theopposite trend detected at subtropical elevation transect.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:The atmospheric deposition of semi-volatile organic compounds represents a potential threat to pristinemountains, in particular by persistent toxic substances which have high environmental mobility, potential forbioaccumulation and display toxic effects even at relative low concentrations.
📊
Temel Bulgular & Veri:Low density polyethylene passivesamplers were deployed in upland surface waters and the overlying atmosphere in subtropical and tropicalmountain regions in south and southeast Brazil, respectively, to determine the concentrations, transport andsources of freely dissolved and gaseous polycyclic aromatic hydrocarbons (PAHs) along altitudinal gradients.Gaseous PAH concentrations (0.70–90 ng $m^{-3}$) were dominated by phenanthrene and fluorene, though methylnaphthalenes displayed high concentrations at upland sites.
💡
Sonuç & Katkı:However, local PAH emission sources probably explain theopposite trend detected at subtropical elevation transect.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

The atmospheric deposition of semi-volatile organic compounds represents a potential threat to pristinemountains, in particular by persistent toxic substances which have high environmental mobility, potential forbioaccumulation and display toxic effects even at relative low concentrations. Low density polyethylene passivesamplers were deployed in upland surface waters and the overlying atmosphere in subtropical and tropicalmountain regions in south and southeast Brazil, respectively, to determine the concentrations, transport andsources of freely dissolved and gaseous polycyclic aromatic hydrocarbons (PAHs) along altitudinal gradients.Gaseous PAH concentrations (0.70–90 ng $m^{-3}$) were dominated by phenanthrene and fluorene, though methylnaphthalenes displayed high concentrations at upland sites. Fluoranthene and chrysene were the most frequently detected PAHs in shallow waters (10–110 pg $L^{-1}$). Individual PAHs indicated a wood/grass combustionorigin at both national parks due to current and historical man-made fires, with a minor petrogenic fingerprint,probably due to the proximity of highway traffic and touristic activities. A slightly increasing trend of 2–3 ringPAHs was observed along tropical elevation transect which may reflect long-range atmospheric transport ofmore volatile PAHs over tropical elevated altitudes. However, local PAH emission sources probably explain theopposite trend detected at subtropical elevation transect.

🔖

Bu Makaleye Atıf Yap

MEIRE, R., KHAIRY, M., ALDEMAN, D., GALVAO, P., TORES, J., MALM, O., LOHMANN, R. (2019). Passive sampler-derived concentrations of PAHs in air and water along Brazilian mountain transects. Atmospheric Pollution Research, Cilt: 10 - Sayı: 2, 635–641. https://ajindex.com/articles/351332

Kaynakça (7)

  1. Álvarez, Á.L., Pozo, K., Paéz, M.I., Estellano, V.H., Llanos, Y., Focardi, S., 2016. Semivolatile Organic Compounds (SVOCs) in the atmosphere of Santiago de Cali, Valle del Cauca, Colombia along north-south transect using polyurethane foam disk as passive air samplers. Atmos. Pollut. Res. 7, 945–953. https://doi.org/10.1016/j. apr.2016.05.006. Aximoff, I., 2011. O que Perdemos com a Passagem do Fogo pelos Campos de Altitude do Estado do Rio de Janeiro? Biodiversidade Bras 1, 180–200.
  2. Aximoff, I., Felippe, A., De Freitas, N., Marcelo, J., Braga, A., 2016. Regeneração natural dos Campos de altitude Pós-Fogo No Parque Nacional do Itatiaia. Sudeste Do Brasil 20, 62–80. https://doi.org/10.4257/oeco.2016.2002.05.
  3. Azevedo, D.D.A., Gerchon, E., Dos Reis, E.O., 2004. Monitoring of pesticides and polycyclic aromatic hydrocarbons in water from Paraíba do Sul River, Brazil. J. Braz. Chem. Soc. 15, 292–299. https://doi.org/10.1590/S0103-50532004000200021.
  4. Barra, R., Castillo, C., Torres, J.P., 2007. Polycyclic aromatic hydrocarbons in the South American environment. Rev. Environ. Contam. Toxicol. 191, 1–22.
  5. Barra, R., Popp, P., Quiroz, R., Treutler, H.C., Araneda, A., Bauer, C., Urrutia, R., 2006. Polycyclic aromatic hydrocarbons fluxes during the past 50 years observed in dated sediment cores from Andean mountain lakes in central south Chile. Ecotoxicol. Environ. Saf. 63, 52–60. https://doi.org/10.1016/j.ecoenv.2005.07.025.
  6. Blais, J.M., Charpentié, S., Pick, F., Kimpe, L.E., Amand, A.S., Regnault-Roger, C., 2006. Mercury, polybrominated diphenyl ether, organochlorine pesticide, and polychlorinated biphenyl concentrations in fish from lakes along an elevation transect in the French Pyrénées. Ecotoxicol. Environ. Saf. 63, 91–99. https://doi.org/10.1016/j. ecoenv.2005.08.008. Blais, J.M., Schindler, D.W., Muir, D.C.G., Kimpe, L.E., Donald, D.B., Rosenberg, B., 1998. Accumulation of persistent organochlorine compounds in mountains of western Canada. Nature 395, 585–588. https://doi.org/Doi 10.1038/26944. Booij, K., Smedes, F., Van Weerlee, E.M., 2002. Spiking of performance reference compounds in low density polyethylene and silicone passive water samplers. Chemosphere 46, 1157–1161. https://doi.org/10.1016/S0045-6535(01)00200-4.
  7. Bradford, D.F., Stanley, K.A., Tallent, N.G., Sparling, D.W., Nash, M.S., Knapp, R.A., Mcconnell, L.L., Massey Simonich, S.L., 2013. Temporal and spatial variation of atmospherically deposited organic contaminants at high elevation in yosemite na