نتایج جستجو برای: chemistry swimming pools criteria

تعداد نتایج: 396773  

Journal: :Water research 2012
M G A Keuten F M Schets J F Schijven J Q J C Verberk J C van Dijk

Pollutants, brought into a swimming pool by bathers, will react with chlorine to form disinfection by-products (DBPs). Some of these DBPs are found to be respiratory and ocular irritant and might be associated with asthma, or might even be carcinogenic. As DBPs in swimming pools are formed from bather-shed-pollutants, a reduction of these pollutants will lead to a reduction of DBPs. Until now, ...

Journal: :BMJ 2003
Deborah Lehmann Mary T Tennant Desiree T Silva Daniel McAullay Francis Lannigan Harvey Coates Fiona J Stanley

OBJECTIVE To determine the health impact of swimming pools built with the aim of improving quality of life and reducing high rates of pyoderma and otitis media. DESIGN Intervention study assessing prevalence of ear disease and skin infections before and at six monthly intervals after opening of swimming pools. SETTING Two remote Aboriginal communities in Western Australia. PARTICIPANTS 84...

Journal: :Journal of Environmental Sciences 2017

Journal: :EPI International Journal of Engineering 2021

2015
Marianne E. McMaster Amanda Jane Lee R. Geoffrey Burwell

To our knowledge there are no publications that have evaluated physical activities in relation to the etiopathogenesis of adolescent idiopathic scoliosis (AIS) other than sports scolioses. In a preliminary longitudinal case-control study, mother and child were questioned and the children examined by one observer. The aim of the study was to examine possible risk factors for AIS. Two study group...

Journal: :Environmental research 2007
Cristina M Villanueva Bertrand Gagniere Christine Monfort Mark J Nieuwenhuijsen Sylvaine Cordier

In the framework of a cohort study of pregnant women conducted in Brittany (France), we assessed the exposure to trihalomethanes (THM) during pregnancy in a subset by evaluating (1) potential sources of variability in household THM levels; (2) the between- and within-subject variability in THM levels; (3) THM levels in swimming pools; and (4) the role of water-related habits on total THM uptake...

Journal: :Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport 2013

Journal: :JAMA ophthalmology 2013
Eric G Romanowski Kathleen A Yates Katherine E O'Connor Francis S Mah Robert M Q Shanks Regis P Kowalski

IMPORTANCE Swimming pools can be a vector for transmission of adenovirus ocular infections. Polyhexamethylene biguanide (PHMB) is a disinfectant used in swimming pools and hot tubs. OBJECTIVE To determine whether PHMB is an effective disinfectant against ocular adenovirus serotypes at a concentration used to disinfect swimming pools and hot tubs. DESIGN In vitro laboratory study. INTERVEN...

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