13,187 results match your criteria sensitive pollution


Role of Toxicokinetic and Toxicodynamic Parameters in Explaining the Sensitivity of Zebrafish Larvae to Four Metals.

Environ Sci Technol 2021 Jun 15. Epub 2021 Jun 15.

Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, P. R. China.

Given the persistence and toxic potencies of metal contaminants in ecosystems, animals, and human beings, they are considered to be hazardous global pollutants. While the lethality of metal toxicities (e.g. Read More

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Grafting resulting in alleviating tomato plant oxidative damage caused by high levels of ofloxacin.

Environ Pollut 2021 May 14;286:117331. Epub 2021 May 14.

College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, 271018, PR China; Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, PR China; State Key Laboratory of Crop Biology, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, Ministry of Agriculture and Rural Affairs, PR China; State Key Laboratory of Crop Biology, Ministry of Agriculture, PR China. Electronic address:

Antibiotic pollution has become a global problem threatening human health. Ofloxacin is one of the more widely used antibiotics, but reports on the reaction of plant to ofloxacin pollution are limited. In this study, using adversity-resistant (R), adversity-sensitive (S) and grafted plant S/R as models, we investigated the biological response of tomato to exogenous ofloxacin residues. Read More

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Diversity and metagenome analysis of a hydrocarbon-degrading bacterial consortium from asphalt lakes located in Wietze, Germany.

AMB Express 2021 Jun 14;11(1):89. Epub 2021 Jun 14.

Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Georg-August University of Göttingen, 37077, Göttingen, Germany.

The pollution of terrestrial and aquatic environments by petroleum contaminants, especially diesel fuel, is a persistent environmental threat requiring cost-effective and environmentally sensitive remediation approaches. Bioremediation is one such approach, but is dependent on the availability of microorganisms with the necessary metabolic abilities and environmental adaptability. The aim of this study was to examine the microbial community in a petroleum contaminated site, and isolate organisms potentially able to degrade hydrocarbons. Read More

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Relative contribution of rice and fish consumption to bioaccessibility-corrected health risks for urban residents in eastern China.

Environ Int 2021 Jun 10;155:106682. Epub 2021 Jun 10.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Environmental and Life Sciences Program (EnLS), Trent University, Peterborough, Ontario, Canada. Electronic address:

There are global concerns about dietary exposure to metal(loid)s in foods. However, little is known about the relative contribution of rice versus fish to multiple metal(loid) exposure for the general population, especially in Asia where rice and fish are major food sources. We compared relative contributions of rice and fish consumption to multi-metal(loid) exposure on the city-scale (Nanjing) and province-scale in China. Read More

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Highly selective fluorescence sensor sensing benzo[a]pyrene in water utilizing carbon dots derived from 4-carboxyphenylboronic acid.

Chemosphere 2021 Jun 7;282:131127. Epub 2021 Jun 7.

State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing, 102249, China. Electronic address:

4-Carboxyphenylboronic acid was used as the single precursor to facilely prepare fluorescent carbon quantum dots by one-step solvothermal method. The as-obtained carbon dots (CDs) exhibited highly selective and sensitive for benzo[a]pyrene (BaP), and may be a splendid sensor for sensing BaP. The principle was that the as-prepared CDs could form a complex with BaP through hydrophobic interaction which causes the decrease of fluorescence intensity of CDs by static quenching principle. Read More

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Ecological criteria for assessing the content of petroleum hydrocarbons in the main soils of coniferous-deciduous forests and forest steppe.

Environ Geochem Health 2021 Jun 12. Epub 2021 Jun 12.

Microbiology and Immunology Department, Perm State University, 15, Bukireva st, Perm, Russia, 614990.

The effect of pollution of Albicluvisols/Retisols, Calcaric Leptosols, Luvic Phaeozems, Greyzamic Phaeozems and Folic Fluvisols with oil (Solovatovsky oil field, Perm region) added in amounts of 1, 2, 3 and 5 g oil/kg of soil on the organisms was studied in a model laboratory experiment. Oil addition showed phytotoxic effects on root length in Triticum aestivum L., Lepidium sativum L. Read More

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Novel nano-engineered environmental sensor based on polymelamine/graphitic-carbon nitride nanohybrid material for sensitive and simultaneous monitoring of toxic heavy metals.

J Hazard Mater 2021 May 31;418:126267. Epub 2021 May 31.

Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City 807, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung City 807, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City 807, Taiwan; Department of Chemistry, National Sun Yat-sen University (NSYSU), Kaohsiung City 804, Taiwan; PhD Program of Aquatic Science and Technology, College of Hydrosphere Science, National Kaohsiung University of Science and Technology (NKUST), Kaohsiung City 807, Taiwan. Electronic address:

Heavy metal ions (HMIs) pollution is always a serious issue worldwide. Therefore, monitoring HMIs in environmental water is an important and challenging step to ensure environmental health and human safety. In this study, we spotlight an effortless, single-step in-situ electrochemical polymerization deposition technique to fabricate a novel, low-cost, efficient, nano-engineered poly(melamine)/graphitic-carbon nitride nanonetwork (PM/g-CN) modified screen-printed carbon electrode (SPE) for sensitive, selective, and simultaneous electrochemical monitoring of toxic HMIs in environmental waters. Read More

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Ecotoxicological epigenetics in invertebrates: Emerging tool for the evaluation of present and past pollution burden.

Authors:
Maja Šrut

Chemosphere 2021 Jun 2;282:131026. Epub 2021 Jun 2.

University of Innsbruck, Institute of Zoology, Technikerstraße 25, 6020, Innsbruck, Austria. Electronic address:

The effect of environmental pollution on epigenetic changes and their heredity in affected organisms is of major concern as such changes can play a significant role in adaptation to changing environmental conditions. Changes of epigenetic marks including DNA methylation, histone modifications, and non-coding RNA's can induce changes in gene transcription leading to physiological long-term changes or even transgenerational inheritance. Such mechanisms have until recently been scarcely studied in invertebrate organisms, mainly focusing on model species including Caenorhabditis elegans and Daphnia magna. Read More

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DNA integrity and ecophysiological responses of Spanish populations of Ulmus glabra to increasing ozone levels.

Ecotoxicology 2021 Jun 10. Epub 2021 Jun 10.

DEB, University of Tuscia, Viterbo, Italy.

Ulmus glabra is a deciduous tree with a wide distribution in the Eurosiberian region. The southernmost populations, in the Mediterranean area, are fragmented in mountain areas which act as a refugium. These small relict populations can act as sentinel of global change, including climate change and impacts of human activities such as air pollution. Read More

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Inflammation at the Crossroads: the Combined Effects of COVID-19, Ageing, and Air Pollution.

J Frailty Aging 2021 ;10(3):281-285

Dr. Sylvain Billet, Univ. Littoral Côte d'Opale, UR 4492, UCEIV, Maison de la Recherche en Environnement Industriel 2, 189A, Avenue Maurice Schumann, 59140 Dunkerque, France. Phone: +33-3 28 23 76 41, E-mail:

The global COVID-19 pandemic has highlighted different vulnerability profiles among individuals. With the highest mortality rate, the elderly are a very sensitive group. With regard to the main symptoms, a failure of the respiratory system, associated with deregulation of the immune system, has been observed. Read More

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The removal of PM by trees in tropical Andean metropolitan areas: an assessment of environmental change scenarios.

Environ Monit Assess 2021 Jun 8;193(7):396. Epub 2021 Jun 8.

Grupo de Física Teórica y Computacional, Facultad de Ciencias Básicas y Tecnologías, Universidad del Quindío, Armenia, Colombia.

Metropolitan areas in Andean industrialized valleys with a strong geomorphological structure and a pronounced climate experience an increasing degradation of air quality, which motivates environmental policies that include the expansion of tree coverage in urban areas among the mitigation measures. Using the metropolitan area of the Aburrá Valley, Colombia, as a study case, we evaluate the removal of PM by urban trees with the Urban Forest Effects (UFORE) methodology, considering the potential effect of changing tree covers in the valley for several projected meteorological conditions under climate change and different urban management practices. The estimated removals are sensitive to the number and distribution of available ground stations, with a tendency to overestimate with fewer stations. Read More

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Transport and fate of antibiotics in a typical aqua-agricultural catchment explained by rainfall events: Implications for catchment management.

J Environ Manage 2021 Jun 5;293:112953. Epub 2021 Jun 5.

School of Environment, Beijing Normal University, Beijing, 100875, China.

Antibiotics receive many concerns since their negative environmental impacts are being revealed, especially in aqua-agricultural areas. Rainfall events are responsible for transferring excess contaminants to receiving waters. However, the understanding of antibiotics transport and fate responding to rainfall events was constrained by limited event-based data and lacking integrated consideration of dissolved and particulate forms. Read More

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Ecotoxicological risk assessment of metal cocktails based on maximum cumulative ratio during multi-generational exposures.

Water Res 2021 May 22;200:117274. Epub 2021 May 22.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China; Department of Veterinary Biomedical Sciences and Toxicology Center, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Environmental Science, Baylor University, Waco, Texas, USA.

Humans and wildlife are frequently exposed to complex mixtures of chemicals, with exposure rarely causing only one dominant effect. Consequently, there is an urgent need to develop strategies to assess exposures to multiple, hazardous chemicals and effects of such combinations. Here, the maximum cumulative ratio was used as part of a tiered approach to evaluate and prioritize risks of co-exposures to metals in 781 samples of surface water from Tai Lake, China. Read More

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Association between maternal exposure to gaseous pollutants and atrial septal defect in China: A nationwide population-based study.

Environ Res 2021 Jun 9;200:111472. Epub 2021 Jun 9.

The Joint Laboratory for Pulmonary Development and Related Diseases, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, 610041, China; National Center for Birth Defects Monitoring, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, China; Med-X Center for Informatics, Sichuan University, Chengdu, Sichuan, 610041, China. Electronic address:

Background: The association between maternal exposure to gaseous air pollutants and congenital heart defects (CHD) remains unclear. The concentration-response relationship and the time windows of susceptibility to gaseous pollutants may vary by pollutant species and CHD subtypes.

Objective: We aimed to examine the relationship between maternal exposures to four species of gaseous pollutants (NO, O, SO, and CO) and atrial septal defect (ASD), which is a common subtype of CHD, and to determine the critical time windows of susceptibility for each gaseous pollutant. Read More

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In-site synthesis of an inorganic-framework molecular imprinted TiO/CdS heterostructure for the photoelectrochemical sensing of bisphenol A.

Anal Methods 2021 Jun 6. Epub 2021 Jun 6.

Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China.

In this study, we develop a highly sensitive and selective photoelectrochemical (PEC) sensor for bisphenol A (BPA) determination by combining a TiO2/CdS heterostructure with inorganic framework molecular imprinting (MI) technology. A MI-TiO2/CdS heterostructure was synthesized via successive ionic layer adsorption combined with an inorganic framework molecular imprinting method. Due to the matched energy level distribution of TiO2 with CdS, the formed heterojunction promotes photogenerated charge separation and enhanced PEC conversion. Read More

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Development and validation of sensitive methods for simultaneous determination of 9 antiviral drugs in different various environmental matrices by UPLC-MS/MS.

Chemosphere 2021 May 28;282:131047. Epub 2021 May 28.

SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Environmental Theoretical Chemistry, School of Environment, South China Normal University, Guangzhou, 510006, China. Electronic address:

Trace antiviral drug contamination in aquatic ecosystems is becoming a significant environmental concern that requires an urgent efficient determination method. Here we developed sensitive and robust multi-residue determination methods to simultaneously extract and analyze 9 commonly used antiviral drugs (abacavir, zidovudine, efavirenz, nevirapine, ritonavir, lopinavir, lamivudine, telbivudine and entecavir) in surface water, wastewater, sediment, and sludge. Water samples were extracted with solid-phase extraction (SPE) technique using tandem hydrophilic-lipophilic balance and graphitized carbon black cartridges, while sediment and sludge samples were extracted using QuEChERS (quick, easy, cheap, effective, rugged, and safe) method. Read More

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Ozone and SOA formation potential based on photochemical loss of VOCs during the Beijing summer.

Environ Pollut 2021 May 31;285:117444. Epub 2021 May 31.

Aerosol and Haze Laboratory, Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China. Electronic address:

Volatile organic compounds (VOCs) are easily degraded by oxidants during atmospheric transport. Therefore, the contribution of VOCs to ozone (O) and secondary organic aerosol (SOA) formation at a receptor site is different from that in a source area. In this study, hourly concentrations of VOCs and other pollutants, such as O, NOx, HONO, CO, and PM, were measured in the suburbs (Daxing district) of Beijing in August 2019. Read More

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Effects of continuous and intermittent cadmium exposure on HPGL axis, GH/IGF axis and circadian rhythm signaling and their consequences on reproduction in female zebrafish: Biomarkers independent of exposure regimes.

Chemosphere 2021 May 26;282:130879. Epub 2021 May 26.

College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, 316022, PR China. Electronic address:

Typical biomarkers of cadmium (Cd) pollution have well been confirmed in fish from continuous exposure pattern. However, in a natural environment, fish may be exposed to Cd intermittently. In this study, juvenile female zebrafish were exposed for 48 days to 10 μg/L Cd continuously, 20 μg/L for 1 day in every 2 days or 30 μg/L for 1 day in every 3 days. Read More

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Tropical Beaches Attenuate Groundwater Nitrogen Pollution Flowing to the Ocean.

Environ Sci Technol 2021 Jun 4;55(12):8432-8438. Epub 2021 Jun 4.

Leibniz-Center for Tropical Marine Research (ZMT), Fahrenheitstraße 6, 28359 Bremen, Germany.

Tropical urbanized coastal regions are hotspots for the discharge of nutrient-enriched groundwater, which can affect sensitive coastal ecosystems. Here, we investigated how a beach modifies groundwater nutrient loads in southern India (Varkala Beach), using flux measurements and stable isotopes. Fresh groundwater was highly enriched in NO from sewage or manure. Read More

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Adult skin acute stress responses to short-term environmental and internal aggression from exposome factors.

J Eur Acad Dermatol Venereol 2021 Jun 2. Epub 2021 Jun 2.

Department of Psychosomatic Medicine and Psychotherapy, Justus-Liebig University Gießen, Germany and Charité Center 12 (CC12) for Internal Medicine and Dermatology, Berlin, Germany.

Exposome factors that lead to stressed skin can be defined as any disturbance to homeostasis from environmental (meteorological factors, solar radiation, pollution or tobacco smoke) and/or internal exposure (unhealthy diet, hormonal variations, lack of sleep, psychosocial stress). The clinical and biological impact of chronic exposome effects on skin functions has been extensively reviewed, whereas there is a paucity of information on the impact of short-term acute exposure. Acute stress, which would typically last minutes to hours (and generally no more than a week), provokes a transient but robust neuroendocrine-immune and tissue remodeling response in the skin and can alter the skin barrier. Read More

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SERS Approach to Probe the Adsorption Process of Trace Volatile Benzaldehyde on Layered Double Hydroxide Material.

Anal Chem 2021 Jun 2;93(23):8228-8237. Epub 2021 Jun 2.

CAS Key Laboratory of High Magnetic Field and Ion Beam Biology, Hefei Institute of Intelligent Agriculture, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China.

The study of the physicochemical process of volatile organic compound (VOC) adsorption on porous materials is significant for design and screening of adsorbent materials and treatment of VOCs. Traditional measurement methods for studying the adsorption process require lots of adsorbates and adsorbents and are time-consuming. We proposed a facile strategy to study the adsorption process of trace gaseous aldehydes on layered double hydroxide (LDH) using surface-enhanced Raman spectroscopy (SERS). Read More

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Sensitive detection of miRNA based on enzyme-propelled multiple photoinduced electron transfer strategy.

Mikrochim Acta 2021 Jun 1;188(6):219. Epub 2021 Jun 1.

College of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, 246011, China.

A method is presented that uses photoinduced electron transfer (PET) for the determination of microRNAs (miRNAs) in clinical serum samples and complicated cell samples by using a smartphone. miRNA-21 is adopted as a model analyte. A 3'-phosphorylated DNA probe containing AgNCs is synthesized and hybridized with miRNA-21. Read More

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Environmental Factors-Induced Oxidative Stress: Hormonal and Molecular Pathway Disruptions in Hypogonadism and Erectile Dysfunction.

Antioxidants (Basel) 2021 May 24;10(6). Epub 2021 May 24.

Department of Applied Physics, School of Science, Aalto University, 00076 Espoo, Finland.

Hypogonadism is an endocrine disorder characterized by inadequate serum testosterone production by the Leydig cells of the testis. It is triggered by alterations in the hypothalamic-pituitary-gonadal axis. Erectile dysfunction (ED) is another common disorder in men that involves an alteration in erectile response-organic, relational, or psychological. Read More

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Mitigation of Airborne Contaminant Spread through Simple Interventions in an Occupied Single-Family Home.

Int J Environ Res Public Health 2021 05 30;18(11). Epub 2021 May 30.

FSEC Energy Research Center, University of Central Florida, Cocoa, FL 32922, USA.

Historically, reducing aerosol-based transmission of respired viruses in indoor environments has been of importance for controlling influenza viruses and common-cold rhinoviruses. The present public health emergency associated with SARS-CoV-2 makes this topic critically important. Yet to be tested is the potential effectiveness of simple interventions that create an isolation zone (IZ) for a suspected/confirmed sick or sensitive person requiring quarantine. Read More

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Which Risk Factors Matter More for Psychological Distress during the COVID-19 Pandemic? An Application Approach of Gradient Boosting Decision Trees.

Authors:
Yiyi Chen Ye Liu

Int J Environ Res Public Health 2021 05 30;18(11). Epub 2021 May 30.

School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China.

Background: A growing body of scientific literature indicates that risk factors for COVID-19 contribute to a high level of psychological distress. However, there is no consensus on which factors contribute more to predicting psychological health.

Objectives: The present study quantifies the importance of related risk factors on the level of psychological distress and further explores the threshold effect of each rick factor on the level of psychological distress. Read More

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UAV Photogrammetry under Poor Lighting Conditions-Accuracy Considerations.

Sensors (Basel) 2021 May 19;21(10). Epub 2021 May 19.

Department of Geodesy, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza 11-12, 80-233 Gdansk, Poland.

The use of low-level photogrammetry is very broad, and studies in this field are conducted in many aspects. Most research and applications are based on image data acquired during the day, which seems natural and obvious. However, the authors of this paper draw attention to the potential and possible use of UAV photogrammetry during the darker time of the day. Read More

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Recent Progress of Toxic Gas Sensors Based on 3D Graphene Frameworks.

Sensors (Basel) 2021 May 13;21(10). Epub 2021 May 13.

College of Liberal Arts and Science, National University of Defense Technology, Changsha 410073, China.

Air pollution is becoming an increasingly important global issue. Toxic gases such as ammonia, nitrogen dioxide, and volatile organic compounds (VOCs) like phenol are very common air pollutants. To date, various sensing methods have been proposed to detect these toxic gases. Read More

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Determination of 40 Elements in Powdered Infant Formulas and Related Risk Assessment.

Int J Environ Res Public Health 2021 May 11;18(10). Epub 2021 May 11.

Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, 00185 Rome, Italy.

The aim of the study was to analyze all powdered infant formulas authorized and commercialized in Italy at the time of the study to measure the concentrations of 40 elements, and to estimate the infants' intake of some toxic heavy metals for assessing possible related health risks. For this purpose, an optimized multi-element method was used through inductively coupled plasma mass spectrometry. Be, B, Al, Zr, Nb, Sb, Te, W, V, Cr and As concentrations were Read More

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Reactive Oxygen Species-Induced TRPM2-Mediated Ca Signalling in Endothelial Cells.

Antioxidants (Basel) 2021 May 3;10(5). Epub 2021 May 3.

Department of Physiology and Pathophysiology, Sino-UK Joint Laboratory of Brain Function and Injury of Henan Province, Xinxiang Medical University, Xinxiang 453003, China.

Endothelial cells form the innermost layer of blood vessels with a fundamental role as the physical barrier. While regulation of endothelial cell function by reactive oxygen species (ROS) is critical in physiological processes such as angiogenesis, endothelial function is a major target for interruption by oxidative stress resulting from generation of high levels of ROS in endothelial cells by various pathological factors and also release of ROS by neutrophils. TRPM2 is a ROS-sensitive Ca-permeable channel expressed in endothelial cells of various vascular beds. Read More

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Nrf2 Activator PB125® as a Carnosic Acid-Based Therapeutic Agent against Respiratory Viral Diseases, including COVID-19.

Free Radic Biol Med 2021 May 28. Epub 2021 May 28.

Pathways Bioscience, Aurora, CO 80045, USA; (B.M.H.); (B.G.); Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;. Electronic address:

PB125® is a phytochemical composition providing potent Nrf2 activation as well as a number of direct actions that do not involve Nrf2. Nrf2 is a transcription actor that helps maintain metabolic balance by providing redox-sensitive expression of numerous genes controlling normal day-to-day metabolic pathways. When ordinary metabolism is upset by extraordinary events such as injury, pathogenic infection, air or water pollution, ingestion of toxins, or simply by the slow but incessant changes brought about by aging and genetic variations, Nrf2 may also be called into action by the redox changes resulting from these events, whether acute or chronic. Read More

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