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Water for recreational use

Marina Picot-Groz, Hélène Fenet, Maria Jesus Martinez Bueno, David Rosain, Elena Gomez
The presence of personal care products (PCPs) in the marine environment is of major concern. PCPs, UV filters, and musks can enter the marine environment indirectly through wastewater or directly via recreational activities. We conducted this study to document patterns in the occurrence of seven PCPs at three coastal sites impacted by recreational activities during 1 day. The study focused on diurnal variations in these seven PCPs in seawater and indigenous mussels. In seawater, UV filters showed diurnal variations that mirrored variations in recreational activities at the sites...
January 15, 2018: Environmental Science and Pollution Research International
Agni Nhirmal Kumar, Chun Ian Soo, Boon Hau Ng, Tidi Hassan, Andrea Yu-Lin Ban, Roslina Abdul Manap
The use of Cannabis sativa, also known as marijuana, is believed to have dated back to thousands of years B.C. More than 200 decades later, it remains a popular recreational psychoactive substance that can be smoked through a water pipe. We report a case of marijuana smoking via a "bong" device, which has resulted in severe Pseudomonas aeruginosa necrotizing pneumonia treated with conservative medical therapy. This case highlights the importance of recognizing that life-threatening pneumonia can potentially be linked to marijuana and "bong" usage...
February 2018: Respirology Case Reports
Stephen A Ferguson, Xuewei Wang, Mollie Mahoney, Mark E Meyerhoff
A universal method for the detection, quantification, and characterization of polyquaterniums (PQs) in a simple background electrolyte solution and in more complex recreational swimming pool water samples is presented. This method involves the application of polycation-sensitive ion-selective optodes (ISOs) prepared by inkjet printing dinonylnaphthalenesulfonic acid (H+DNNS-) and chromoionophore I directly onto WhatmanTM qualitative filter paper. No plasticizer or added polymer matrix is required for the fabrication of the sensing layer which is coated on the cellulose fibers of the filter paper...
2018: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
Stephanie DeFlorio-Barker, Coady Wing, Rachael M Jones, Samuel Dorevitch
BACKGROUND: Activities such as swimming, paddling, motor-boating, and fishing are relatively common on US surface waters. Water recreators have a higher rate of acute gastrointestinal illness, along with other illnesses including respiratory, ear, eye, and skin symptoms, compared to non-water recreators. The quantity and costs of such illnesses are unknown on a national scale. METHODS: Recreational waterborne illness incidence and severity were estimated using data from prospective cohort studies of water recreation, reports of recreational waterborne disease outbreaks, and national water recreation statistics...
January 9, 2018: Environmental Health: a Global Access Science Source
Thomas Ranius, Aino Hämäläinen, Gustaf Egnell, Bengt Olsson, Karin Eklöf, Johan Stendahl, Jörgen Rudolphi, Anna Sténs, Adam Felton
We review the consequences for biodiversity and ecosystem services from the industrial-scale extraction of logging residues (tops, branches and stumps from harvested trees and small-diameter trees from thinnings) in managed forests. Logging residue extraction can replace fossil fuels, and thus contribute to climate change mitigation. The additional biomass and nutrients removed, and soils and other structures disturbed, have several potential environmental impacts. To evaluate potential impacts on ecosystem services and biodiversity we reviewed 279 scientific papers that compared logging residue extraction with non-extraction, the majority of which were conducted in Northern Europe and North America...
January 5, 2018: Journal of Environmental Management
Monyque Palagano da Rocha, Priscila Leocadia Rosa Dourado, Claudia Andrea Lima Cardoso, Liliam Silva Cândido, Joelson Gonçalves Pereira, Kelly Mari Pires de Oliveira, Alexeia Barufatti Grisolia
Anthropic activities are directly related to the contamination of aquatic ecosystems owing to the release of numerous chemicals from agricultural and urban waste. These contaminants cause environmental degradation and a decrease in the availability of water quality. The objective of this search was to evaluate the efficiency of physicochemical, chemical, and microbiological tests; extraction of chlorophyll a; and genetic parameters to identify anthropic activities and weather condition effects on the stream water quality and the consequences of its use by the population...
January 5, 2018: Environmental Monitoring and Assessment
Erika L English, Kristin C Schutz, Graham G Willsey, Matthew J Wargo
Many Pseudomonas aeruginosa infections are derived from residential, recreational, or surface water sources, thus, these environments represent an important pre-infection niche. To better understand P. aeruginosa biology in these environments, we quantified transcriptional changes by microarray after exposure to diluted LB, diluted R2B, potable tap water, and freshwater from a eutrophic pond. qRT-PCR confirmed conservation of these responses in other water sources, and competition experiments were used to test the importance of three implicated metabolic pathways...
January 5, 2018: Applied and Environmental Microbiology
Jennifer Weidhaas, Angela Anderson, Rubayat Jamal
Fecal indicator bacteria (FIB) are the basis for water quality regulations and are considered proxies for waterborne pathogens when conducting human health risk assessments. Direct detection of pathogens in water and simultaneous identification of the source of fecal contamination is possible with microarrays, circumventing drawbacks to FIB approaches. A multi-gene target microarray was used to assess the prevalence of waterborne pathogens in a fecally impaired, mixed use watershed. Results indicate that fecal coliforms have improved substantially in the watershed since its listing as a 303(d) impaired stream in 2002 and are now near United States recreational water criteria standards...
January 5, 2018: Applied and Environmental Microbiology
Hui Zhu, Fang Yuan, Zhaokang Yuan, Rong Liu, Fei Xie, Ling Huang, Xiaojun Liu, Xiaoqing Jiang, Jian Wang, Qunying Xu, Zhiqiang Shen, Donghan Liu, Ronghao Zhang, Yuanan Lu
BACKGROUND: Recreational water contaminated with fecal pollution poses a great public health concern, as fecal waste may cause serious waterborne illnesses. Current recreational water standards using fecal indicator bacteria (FIB) have their limitations for human protection especially in developing countries such as China. METHODS: To explore the potential use of enteric viruses as a potential indicator of fecal contamination, four viruses: norovirus geno-groups I and II, enteroviruses, and adenoviruses were tested in this study using molecular detection methods and sensitive RT-PC developed in the University of Hawaii...
January 5, 2018: Virology Journal
Li Gao, Bo Gao, Shuhua Yin, Dongyu Xu, Jijun Gao
The South-to-North Water Diversion Project has been initiated to address the problem of water shortages in north China. However, the environmental impact of this project is currently unclear, especially for the geochemical process of toxic trace metals in reservoir riparian soil following water submergence. The mobility of Ni in Miyun Reservoir riparian soil samples was investigated using diffusive gradients in thin films (DGT), considering five different land use types and three vertical elevations. The DGT-induced fluxes in soil (DIFS) model was applied to simulate the kinetics of Ni mobilization in the soil...
December 14, 2017: Chemosphere
J Kalinová, A Valenčáková, E Hatalová, O Danišová, M Trungelová, R Hromada
Cryptosporidium species C. parvum and C. hominis are a common cause of human diarrheal infections worldwide. In this study we attempted to detect these parasites in fish ponds and a water reservoirs in the Nitra region of Slovakia. We identified C. parvum genotype IIaA15G1R1 and genotype IIaA16G1R1 and C. hominis genotype IeA11G3T3 in these locations. Occurrence of the same genotype of C. hominis in two different locations indicates that this parasite is most likely present in the river that connects them. These results indicate a serious threat to public health of humans since these locations are used for fishing and for recreational activities...
December 20, 2017: Acta Tropica
Luciana Regaldo, María F Gutierrez, Ulises Reno, Viviana Fernández, Susana Gervasio, María R Repetti, Ana M Gagneten
The present study focuses on the evaluation of metal (chromium, copper, and lead), arsenic, and pesticide (atrazine and endosulfan) contamination in freshwater streams of one of the most important agricultural and industrial areas of central-eastern Argentina, which has not been reported earlier. The environmental fate of inorganic microcontaminants and pesticides was assessed. Samples were collected monthly for a year. Pesticide concentrations were measured in water; metal and arsenic concentrations were measured in water and sediments, and physicochemical variables were analyzed...
December 22, 2017: Environmental Science and Pollution Research International
Lesley Maurice Bilung, Ahmad Syatir Tahar, Nur Emyliana Yunos, Kasing Apun, Yvonne Ai-Lian Lim, Elexson Nillian, Hashimatul Fatma Hashim
Cryptosporidiosis and cyclosporiasis are caused by waterborne coccidian protozoan parasites of the genera Cryptosporidium and Cyclospora, respectively. This study was conducted to detect Cryptosporidium and Cyclospora oocysts from environmental water abstracted by drinking water treatment plants and recreational activities in Sarawak, Malaysia. Water samples (12 each) were collected from Sungai Sarawak Kanan in Bau and Sungai Sarawak Kiri in Batu Kitang, respectively. In addition, 6 water samples each were collected from Ranchan Recreational Park and UNIMAS Lake at Universiti Malaysia Sarawak, Kota Samarahan, respectively...
2017: BioMed Research International
Dirk S Schmeller, Adeline Loyau, Kunshan Bao, Werner Brack, Antonis Chatzinotas, Francois De Vleeschouwer, Jan Friesen, Laure Gandois, Sophia V Hansson, Marilen Haver, Gaël Le Roux, Ji Shen, Roman Teisserenc, Vance T Vredenburg
Mountain catchments provide for the livelihood of more than half of humankind, and have become a key destination for tourist and recreation activities globally. Mountain ecosystems are generally considered to be less complex and less species diverse due to the harsh environmental conditions. As such, they are also more sensitive to the various impacts of the Anthropocene. For this reason, mountain regions may serve as sentinels of change and provide ideal ecosystems for studying climate and global change impacts on biodiversity...
December 7, 2017: Science of the Total Environment
M M Majedul Islam, Muhammad Shahid Iqbal, Rik Leemans, Nynke Hofstra
Microbial surface water quality is important, as it is related to health risk when the population is exposed through drinking, recreation or consumption of irrigated vegetables. The microbial surface water quality is expected to change with socio-economic development and climate change. This study explores the combined impacts of future socio-economic and climate change scenarios on microbial water quality using a coupled hydrodynamic and water quality model (MIKE21FM-ECOLab). The model was applied to simulate the baseline (2014-2015) and future (2040s and 2090s) faecal indicator bacteria (FIB: E...
December 4, 2017: International Journal of Hygiene and Environmental Health
Bashiru Garba, Abdul Rani Bahaman, Siti Khairani Bejo, Zunita Zakaria, Abdul Rahim Mutalib, Faruku Bande
INTRODUCTION: Leptospirosis is a zoonotic disease caused by a diverse pathogenic leptospira species and serovars. The disease is transmitted directly following contact with infected urine and other body fluids or indirectly after contact with water or soil contaminated with infected urine. OBJECTIVES: While a wide range of domestic and wild animals are known to be reservoirs of the disease, occupation, international travel and recreation are beginning to assume a center stage in the transmission of the disease...
February 2018: Acta Tropica
Nicole Van Abel, Janet Mans, Maureen B Taylor
This study assessed the risks posed by noroviruses (NoVs) in surface water used for drinking, domestic, and recreational purposes in South Africa (SA), using a quantitative microbial risk assessment (QMRA) methodology that took a probabilistic approach coupling an exposure assessment with four dose-response models to account for uncertainty. Water samples from three rivers were found to be contaminated with NoV GI (80-1,900 gc/L) and GII (420-9,760 gc/L) leading to risk estimates that were lower for GI than GII...
October 2017: Journal of Water and Health
Catarina Churro, Joana Azevedo, Vitor Vasconcelos, Alexandra Silva
Cyanobacteria blooms are frequent in freshwaters and are responsible for water quality deterioration and human intoxication. Although, not a new phenomenon, concern exists on the increasing persistence, scale, and toxicity of these blooms. There is evidence, in recent years, of the transfer of these toxins from inland to marine waters through freshwater outflow. However, the true impact of these blooms in marine habitats has been overlooked. In the present work, we describe the detection of Planktothrix agardhii, which is a common microcystin producer, in the Portuguese marine coastal waters nearby a river outfall in an area used for shellfish harvesting and recreational activities...
December 3, 2017: Toxins
Rodelyn Avila, Beverley Horn, Elaine Moriarty, Roger Hodson, Elena Moltchanova
Exposure to contaminated water while swimming or boating or participating in other recreational activities can cause gastrointestinal and respiratory disease. It is not uncommon for water bodies to experience rapid fluctuations in water quality, and it is therefore vital to be able to predict them accurately and in time so as to minimise population's exposure to pathogenic organisms. E. coli is commonly used as an indicator to measure water quality in freshwater, and higher counts of E. coli are associated with increased risk to illness...
December 2, 2017: Journal of Environmental Management
Jessica J Tipton, Louis J Guillette, Susan Lovelace, Benjamin B Parrott, Thomas R Rainwater, Jessica L Reiner
Exposure to perfluorinated alkyl acids (PFAAs) has been linked to many harmful health effects including reproductive disorders, developmental delays, and altered liver and kidney function. Most human exposure to environmental contaminants, including PFAAs, occurs through consumption of contaminated food or drinking water. This study uses PFAA data from meat samples collected from recreationally harvested American alligators (Alligator mississippiensis) in South Carolina to assess potential dietary exposure of hunters and their families to PFAAs...
November 2017: Journal of Environmental Sciences (China)
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