Article
Environmental Sciences
Yaqi Bi, Wei Chen, Jingjing Miao, Luqing Pan, Dongyu Li
Summary: This study investigated the bioaccumulation, detoxification, and biomacromolecular damage mechanisms of benzo[a]pyrene (B[a]P) at the subcellular level in the scallop Chlamys farreri. The results showed that B[a]P accumulation exhibited a time-dose effect, and the intracellular migration order of B[a]P was speculated. The activities of B[a]P metabolizing enzymes were significantly affected by B[a]P exposure, and biomacromolecules in specific subcellular fractions were more vulnerable to damage.
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2022)
Article
Environmental Sciences
Yuyao Wu, Zeming Zhang, Wei Huang, Hua Liu, Rongrong Zhang, Haifeng Jiao, Aili Sun, Jiong Chen, Xizhi Shi
Summary: Polycyclic aromatic hydrocarbons (PAHs) as persistent organic pollutants are widely present and accumulate in multimedia environments. The study investigated the pollution characteristics, spatiotemporal distribution, potential sources, influencing factors, and ecological risks of 16 PAHs in the water-sediment system of the Hangzhou Bay and outer bay area. The total concentrations showed variations between seawater and sediments, with higher levels found in the HZB seawater and lower levels in the OBA seawater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Lilian Dalago Salgado, Antonio Ernesto Meister Luz Marques, Rafael Duarte Kramer, Fernando Garrido de Oliveira, Sarah Lott Moretto, Barbara Alves de Lima, Maritana Mela Prodocimo, Marta Margarete Cestari, Julio Cesar Rodrigues de Azevedo, Helena Cristina Silva de Assis
Summary: This study focused on the Estuarine-Lagoon Complex of Iguape-Cananeia in Brazil, exploring the relationship between external levels of contaminants and toxic effects on Gobioides broussonnetii fish. It found higher contamination near urban centers, low to moderate metal concentrations, low PAHs concentrations, and increased PPCPs concentrations due to human activities. The study also revealed that metals and PPCPs were more concentrated during the cold-dry season, while PAHs concentrations were higher in the hot-rainy season, suggesting different influences on fish biology.
ENVIRONMENTAL RESEARCH
(2021)
Review
Food Science & Technology
Adriana Nowak, Ireneusz Nowak
Summary: Honey is a natural food with pro-health properties but can also be contaminated with environmental pollutants. Research focuses on heavy metals and pesticides in honey, with urban and industrial areas showing higher contamination levels than ecological and rural locations. Propolis and bee pollen contain more pollutants compared to honey. Most toxic pollutants in honey/bee products are not a threat to consumer health, although pesticides and heavy metals are of concern due to exceedance of maximum limits in some studies.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Environmental Sciences
Anna Lunde Hermansson, Ida-Maja Hassellov, Jukka-Pekka Jalkanen, Erik Ytreberg
Summary: Marine environmental risk assessments often overlook the cumulative risk from multiple pollutants and sources. This study used the STEAM and MAMPEC models to estimate contaminant loads and predict environmental concentrations of metals and polycyclic aromatic hydrocarbons in four ports. The results showed that three out of four ports were found to have unacceptable risk levels, highlighting the importance of considering multiple contaminant sources when assessing shipping-related environmental risks.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Maristela Lino Candido Cassita, Jose Augusto de Oliveira David
Summary: This study aims to assess the ecosystem health of Santos estuary using Mytella falcata bivalve as a bioindicator and histopathology as a biomarker. The results showed severe disorders in organisms from certain sample sites, indicating high concentrations of contaminants and a negative impact on the ecosystem and organisms' health.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Engineering, Environmental
Xiangjing Meng, Yanhua Wang, Ting Wang, Bo Jiao, Hua Shao, Qiang Jia, Huawei Duan
Summary: Compared with animal studies, there is limited research on the impairments of T-cell response and exposure-response from particulate matter (PM) and its components in the human population. This study found that PM and its bound polycyclic aromatic hydrocarbons (PAHs) and metals can induce immune impairments by altering T lymphocytes and genes of T-bet and GATA3. Additionally, CD4+ T lymphocytes were found to mediate the associations of PM2.5 with T-bet expression.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Yusuke Nakakuki, Takashi Hirose, Hikaru Sotome, Min Gao, Daiki Shimizu, Ruiji Li, Jun-Ya Hasegawa, Hiroshi Miyasaka, Kenji Matsuda
Summary: Helically twisted conductive nanocarbon materials are suitable for optoelectronic and electromagnetic molecular devices on the nanometer scale, showing a large effective conjugation length and ultrafast decay dynamics. The extended π-helicenes achieved a large effective conjugation length through helical fusion, leading to an absorption edge in the near-infrared region.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Sandra Gomez-Arroyo, Miguel Angel Zavala-Sanchez, Cesar Damian Alonso-Murillo, Josefina Cortes-Eslava, Omar Amador-Munoz, Luis Felipe Jimenez-Garcia, Ofelia Morton-Bermea
Summary: This study for the first time examines the genotoxicity of mosses exposed to the atmosphere in Mexico City and the metropolitan area, demonstrating their accumulation capacity and ability to respond to atmospheric pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Xiushang Xu, Amy L. Vonder Haar, Rengo Yoshioka, Qizheng Zhang, Serhii Vasylevskyi, Andrew J. Musser, Akimitsu Narita
Summary: A benzo[rst]pentaphene derivative, BPP-MeOPA, was synthesized and characterized by NMR and single-crystal X-ray analysis. Investigation of its photophysical properties, including transient absorption spectroscopy, revealed improved absorption and emission features from an S-1 state with excitonic and charge-transfer character by introducing MeOPA groups.
CHEMICAL COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Yingxin Yu, Mengmeng Peng, Yanlin Liu, Jinjing Ma, Ning Wang, Shengtao Ma, Nannan Feng, Shaoyou Lu
Summary: The study found variations in the concentrations of OH-PAHs and mPAEs in urine based on geographical location, and a positive correlation between 8-OHdG and these substances. OH-PAHs were found to contribute more to oxidative DNA damage when present alongside mPAFs. Risk assessment indicated that while risks from PAHs may be negligible, a significant percentage of school children may face health risks from PAEs, particularly diethylhexyl phthalate.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Ting Wang, Yanhua Wang, Mengmeng Xu, Zhenjie Wang, Nan Wu, Fang Qi, Jiayang Song, Yufei Dai, Huanqiang Wang, Xin Sun, Sheng Gao, Wenrui Wang, Yanbo Li, Rui Chen, Zhiwei Sun, Qiang Jia, Xinwei Li, Huawei Duan, Zhong Liu
Summary: This study investigated the impact of PM on respiratory health in Chinese boarding schoolchildren, finding higher levels of CC16 and toxic metal components in the high-PM exposed group. It also suggested that PAH and its adduct may play a key role in lung injury during PM exposure.
ENVIRONMENTAL RESEARCH
(2021)
Review
Environmental Sciences
Meng Qiao, Weixiao Qi, Huijuan Liu, Jiuhui Qu
Summary: Oxygenated polycyclic aromatic hydrocarbons (OPAHs) have higher concentrations and toxicity in water environments, posing significant ecological risks to surface water ecosystems.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Environmental Sciences
Humairat H. Rahman, Danielle Niemann, Stuart H. Munson-McGee
Summary: This study aimed to assess the relationship between urinary metals, arsenic compounds, polycyclic aromatic hydrocarbons (PAHs), and chronic obstructive pulmonary disease (COPD) in the adult US population. The results showed that urinary PAHs, cadmium, and tin were significantly associated with COPD, while other urinary metals did not show a significant association.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Organic
Yushi Ohno, Shogo Ando, Daisuke Furusho, Ryoyu Hifumi, Yuuya Nagata, Ikuyoshi Tomita, Shinsuke Inagi
Summary: Here, a facile and selective synthesis of cationic azatriphenylene derivatives was achieved through electrochemical intramolecular cyclization, where the key step involves atom-economical C-H pyridination without a transition-metal catalyst or an oxidant. This proposed strategy provides a practical approach for introducing cationic nitrogen (N (+)) into pi-electron systems, thus expanding the molecular design of N (+)-doped polycyclic aromatic hydrocarbons.
Article
Environmental Sciences
Emily Curren, Sandric Chee Yew Leong
Summary: Microplastics in marine ecosystems serve as microhabitats for diverse toxic plankton species, including viable resting cysts of dinoflagellates. The diversity of plankton communities on the plastisphere is influenced by anthropogenic factors. This study highlights the importance of plastics as vectors for the transport of harmful opportunistic species in the marine environment.
MARINE ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Vladimir G. Dvoretsky, Alexander G. Dvoretsky
Summary: The Barents Sea, as the largest Arctic shelf region, plays a vital role in supporting commercial fisheries. The ecosystem of this region is significantly influenced by both warm Atlantic Water (AW) and cold Arctic Water (ARW), resulting in distinct frontal zones. This study found that copepod populations, particularly herbivorous copepods, were most abundant and productive in the Polar Front, as well as in the eastern frontal zones. The geographic positions of sampling stations, depth, and chlorophyll a concentration were identified as the main factors influencing copepod biomass and production.
MARINE ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Alberto Rovellini, Charlotte L. Mortimer, Matthew R. Dunn, Elizabeth A. Fulton, Jamaluddin Jompa, Abdul Haris, James J. Bell
Summary: This study compared the structural complexity of coral- and sponge-dominated areas of an Indonesian coral reef using 3D photogrammetry. The results showed that smaller-scale refugia were reduced in sponge-dominated reefs, potentially impacting smaller reef fauna.
MARINE ENVIRONMENTAL RESEARCH
(2024)
