Sustainable environmental chemistry and technology with focus on the Mediterranean area
In: Environmental science and pollution research: ESPR, Band 25, Heft 13, S. 12189-12190
ISSN: 1614-7499
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In: Environmental science and pollution research: ESPR, Band 25, Heft 13, S. 12189-12190
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 23, Heft 6, S. 5577-5591
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 17, Heft 3, S. 529-538
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 15, Heft 3, S. 228-236
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR
ISSN: 1614-7499
AbstractClimate change affects the concentration and characteristics of dissolved organic matter (DOM) in surface water. The changes in composition of DOM have many implications to drinking water quality, especially in the case of formation of disinfection by-products (DBPs). The aim of this study was to investigate the formation of nitrogenous DBPs (N-DBPs) during chlorination and chloramination, caused by the alternation of surface water's DOM driven by climate change. For this reason, two different cases were examined: (a) rise of algal organic matter (AOM) due to water blooming and (b) water enrichment by humic substances. The target compounds were haloacetonitriles (HANs), haloacetamides (HAcAms), and halonitromethane (TCNM). The results showed that Anabaena appears to be a major precursor for HAcAms and TCNM, while humic acids are precursors for HANs. The results of the mixtures presented the same pattern. During the water blooming case, HAcAms and TCNM formation are in favor, while during water enrichment by humic substances case, HANs is the N-DBP group with higher formation yield. Cloraminated samples presented higher values of cytotoxicity and genotoxicity compared to the chlorinated.
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In: Environmental science and pollution research: ESPR, Band 25, Heft 26, S. 25869-25879
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 25, Heft 13, S. 12191-12205
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 22, Heft 2, S. 1095-1112
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 13, Heft 5, S. 333-341
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 21, Heft 12, S. 7708-7722
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 23, Heft 4, S. 3556-3568
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 11, Heft 1, S. 11-17
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 21, Heft 3, S. 1769-1785
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 24, Heft 36, S. 28102-28120
ISSN: 1614-7499
The occurrence and atmospheric behavior of tri- to deca-polybrominated diphenyl ethers (PBDEs) were investigated during a 2-week campaign concurrently conducted in July 2012 at four background sites around the Aegean Sea. The study focused on the gas/particle (G/P) partitioning at three sites (Ag. Paraskevi/central Greece/suburban, Finokalia/southern Greece/remote coastal, and Urla/Turkey/rural coastal) and on the size distribution at two sites (Neochorouda/northern Greece/rural inland and Finokalia/southern Greece/remote coastal). The lowest mean total (G + P) concentrations of ∑7PBDE (BDE-28, BDE-47, BDE-66, BDE-99, BDE-100, BDE-153, BDE-154) and BDE-209 (0.81 and 0.95 pg m−3, respectively) were found at the remote site Finokalia. Partitioning coefficients, KP, were calculated, and their linear relationships with ambient temperature and the physicochemical properties of the analyzed PBDE congeners, i.e., the subcooled liquid pressure (PL°) and the octanol-air partition coefficient (KOA), were investigated. The equilibrium adsorption (PL°-based) and absorption (KOA-based) models, as well as a steady-state absorption model including an equilibrium and a non-equilibrium term, both being functions of log KOA, were used to predict the fraction Φ of PBDEs associated with the particle phase. The steady-state model proved to be superior to predict G/P partitioning of BDE-209. The distribution of particle-bound PBDEs across size fractions 7.2 μm indicated a positive correlation between the mass median aerodynamic diameter and log PL° for the less brominated congeners, whereas a negative correlation was observed for the high brominated congeners. The potential source regions of PBDEs were acknowledged as a combination of long-range transport with short-distance sources. ; Granting Agency of the Czech Republic (312334); Czech Ministry of Education, Youth, and Sports (LO1214--LM2015051); Izmir Institute of Technology Scientific Research Foundation (2013IYTE14); European Union FP7 (262254 ACTRIS)
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