Tracing PAH emissions from leisure boats in a low tidal coastal area, including comparison with Environmental Quality Standards (EQS) DOI Creative Commons
Kjell Nordberg,

Göran Björk,

Katarina Abrahamsson

и другие.

Chemosphere, Год журнала: 2024, Номер 370, С. 143910 - 143910

Опубликована: Дек. 13, 2024

The approximately 850,000 recreational boats in Sweden, has shown to have a significant impact on the marine environment of Swedish west coast. extensive weather-protected archipelagos and fjords with minor tidal activity, offers excellent conditions uncover traces leisure exhaust from background. In this study we focus polycyclic aromatic hydrocarbons (PAHs) boat exhausts surface sediments water (using SPMD) busy harbour pristine fjord. PAH analyses were performed using gas chromatography - mass spectrometry after suitable extraction procedures. Concentrations total PAHs was 4-8 ng/L 200-5500 ng/g respectively. addition measurements, used number documented motorboat passages together residence time water, quantify concentration enhancement up 40% due boating. Here for first succeeded distinguishing signature coastal environments. This by combining our data observed compositions lakes where emissions is as dominating source pollution. Comparisons Environmental Quality standards (EQS) showed elevated levels more than five times most exposed sediments, while concentrations below EQS. concludes that boating activities significantly contribute PAH-levels these environments, implications environmental management pollution mitigation strategies.

Язык: Английский

Insight into the mechanism of solution organic fractions on soot oxidation activity enhancement DOI
Junfeng Huang, Jian Gao, Jianbing Gao

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 479, С. 135606 - 135606

Опубликована: Авг. 24, 2024

Язык: Английский

Процитировано

1

Spatiotemporal Distribution, Bioaccumulation, and Ecological and Human Health Risks of Polycyclic Aromatic Hydrocarbons in Surface Water: A Comprehensive Review DOI Open Access
Zijian Wang, Qingling Meng,

K. Sun

и другие.

Sustainability, Год журнала: 2024, Номер 16(23), С. 10346 - 10346

Опубликована: Ноя. 26, 2024

The release of polycyclic aromatic hydrocarbons (PAHs) by human energy exploitation and excessive environmental use has caused substantial contamination. These compounds bioaccumulate in aquatic environments translocate through the food chain, posing risks to health safety. To better understand PAHs surface water chains, this review summarizes their distribution, concentration levels, sources, toxicity various environments. It also examines how PAH bioaccumulation affects organisms health. Globally, have been detected both with an increasing trend. Human activity is main cause results revealed a distinct geographical distribution risk influenced population density, industrial development, climate, seasonal variations. are found remote areas, indicating medium- long-range transport atmospheric dispersion. direct indirect toxic effects via biomagnification. directly correlated pollution. This study emphasizes carcinogenicity such as benzo[a]pyrene, identifying occupational exposure frequencies key factors. enhances our understanding dynamics multiple ecosystems effects, thereby contributing sustainability.

Язык: Английский

Процитировано

1

Characteristics, sources, and concentration prediction of endocrine disruptors in a large reservoir driven by hydrological rhythms: A case study of the Danjiangkou Reservoir DOI
Lei Dong,

Xingrui Qi,

Li Lin

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 484, С. 136779 - 136779

Опубликована: Дек. 4, 2024

Язык: Английский

Процитировано

1

Performance Evaluation of Modified Biochar as a Polycyclic Aromatic Hydrocarbon Adsorbent and Microbial-Immobilized Carrier DOI Open Access

Shuying Geng,

Shushuai Mao,

Guangming Xu

и другие.

Processes, Год журнала: 2024, Номер 12(12), С. 2939 - 2939

Опубликована: Дек. 23, 2024

Herein, biochars derived from corn stalks, rice husks, and bamboo powder were modified by nitric acid oxidation sodium hydroxide alkali activation to identify efficient cost-effective polycyclic aromatic hydrocarbon-adsorbent microbial-immobilized carriers. The surface characterization adsorption investigation results suggested that acid/alkali modification promoted the phenanthrene removal ability in an aqueous solution of via facilitating π–π/n–π electron donor–acceptor interactions, electrostatic hydrogen bonds, hydrophobic interactions. Subsequently, degrading bacteria Rhodococcus sp. DG1 was successfully immobilized on husk-derived biochar with (RBO), which exhibited maximum efficiency (3818.99 µg·g−1), abundant functional groups, a larger specific area (182.6 m2·g−1) pore volume (0.141 m3·g−1). Degradation studies revealed microorganisms RBO method yielded significant rate 80.15% after 30 days, 38.78% higher than control. Conversely, polymer gel network-based microenvironment microorganism-immobilized combined adsorption–embedding restricted migration diffusion nutrients pollutants reaction system. This study thus introduces innovative biochar-based microbial immobilization technology characterized simple design, convenient operation, high efficiency, offering valuable insights into material selection for PAH contamination bioremediation.

Язык: Английский

Процитировано

1

Screening, Identification and Degradation Properties of the PHE-Degrading Strain <i>Stenotrophomonas </i><i>pavanii</i> JEX1 DOI

二笑 蒋

Material Sciences, Год журнала: 2024, Номер 14(10), С. 1480 - 1489

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

0

Tracing PAH emissions from leisure boats in a low tidal coastal area, including comparison with Environmental Quality Standards (EQS) DOI Creative Commons
Kjell Nordberg,

Göran Björk,

Katarina Abrahamsson

и другие.

Chemosphere, Год журнала: 2024, Номер 370, С. 143910 - 143910

Опубликована: Дек. 13, 2024

The approximately 850,000 recreational boats in Sweden, has shown to have a significant impact on the marine environment of Swedish west coast. extensive weather-protected archipelagos and fjords with minor tidal activity, offers excellent conditions uncover traces leisure exhaust from background. In this study we focus polycyclic aromatic hydrocarbons (PAHs) boat exhausts surface sediments water (using SPMD) busy harbour pristine fjord. PAH analyses were performed using gas chromatography - mass spectrometry after suitable extraction procedures. Concentrations total PAHs was 4-8 ng/L 200-5500 ng/g respectively. addition measurements, used number documented motorboat passages together residence time water, quantify concentration enhancement up 40% due boating. Here for first succeeded distinguishing signature coastal environments. This by combining our data observed compositions lakes where emissions is as dominating source pollution. Comparisons Environmental Quality standards (EQS) showed elevated levels more than five times most exposed sediments, while concentrations below EQS. concludes that boating activities significantly contribute PAH-levels these environments, implications environmental management pollution mitigation strategies.

Язык: Английский

Процитировано

0