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- W2885218044 abstract "A comprehensive study on the chemical composition of precipitation, the influence of peat fires and their relations with atmospheric circulation was conducted in the year of 2012, in two intra-mountain basins, the Ciuc basin (CB) and the Giurgeu basin (GB), Eastern Carpathians, Romania. Atmospheric circulation types showed the presence of a westerly anticyclonic circulation, characterized by a strong development of the Azores High to the northern Atlantic, contributing to the appearance of peat-fires. Using ROCADA daily gridded climatic datasets, the maximum and minimum daily temperatures were extracted, showing deviation from 2 °C to 6 °C in the studied year against the multiannual mean for the 1981–2016 period. Rainwater samples were analyzed for pH, major anions and cations; HCO3− concentrations were calculated based on the empirical relationship between pH and HCO3−. The results showed that 45.16% and 54.55% of precipitation had pH > 7.0 at CB and GB, respectively. NH3, NH4+ and Ca2+ are the main neutralizing agents. The significant correlation between SO42− and NH4+ (r = 0.711 – CB; r = 0.736 – GB) indicated neutralization by NH3 in the forms of (NH4)2SO4 and NH4HSO4. Positive regression coefficient between the sum of (H+ + [NH4+] + [Ca2+]) and the sum of ([nss − SO42−] + [NO3−]) (r = 0.855 – CB; r = 0.796 – GB), showed that acid neutralization was primarily brought by NH4+ and/or CaCO3. Using Na as an indicator of marine origin, the proportions of sea salt and non-sea-salt were estimated from elemental ratios. According to correlation analysis and PCA, main acidic ions (SO42− and NO3−) and NH4+ were mainly derived from anthropogenic activities (biomass burning, peat fires, fertilization), while Ca2+ and Mg2+ originated from terrestrial sources. The behavior of gaseous pollutants and smoke distribution resulted from peat fires were deciphered using the HYSPLIT model in a case study." @default.
- W2885218044 created "2018-08-22" @default.
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- W2885218044 creator A5088141477 @default.
- W2885218044 date "2019-01-01" @default.
- W2885218044 modified "2023-10-18" @default.
- W2885218044 title "Influence of peat fires on the rainwater chemistry in intra-mountain basins with specific atmospheric circulations (Eastern Carpathians, Romania)" @default.
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- W2885218044 doi "https://doi.org/10.1016/j.scitotenv.2018.07.462" @default.
- W2885218044 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30081365" @default.
- W2885218044 hasPublicationYear "2019" @default.
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