International Journal ofEnvironmental
The Chinese Ministry of Health Grant (No. 2013ZX10003006).
International Journal ofEnvironmental Study and Public HealthArticleInvestigation on Indoor Air Pollution and Childhood Allergies in Households in Six Chinese Cities by Subjective Survey and Field MeasurementsJinhua Hu 1 , Nianping Li 1, , Yang Lv 2 , Jing Liu three , Jingchao Xie 4 and Huibo Zhang1 two three 4College of Civil Engineering, Hunan University, Changsha 410082, China; [email protected] College of Civil Engineering, Dalian University of Technology, Dalian 116024, China; [email protected] College of Municipal and Environmental Engineering, Harbin Institute of Technologies, Harbin 150001, China; [email protected] College of Architecture and Civil Engineering, Beijing University of Technologies, Beijing 100124, China; [email protected] School of Naval Architecture, Ocean Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; [email protected] Correspondence: [email protected]; Tel.: +86-731-8882-Received: 26 June 2017; Accepted: 24 August 2017; Published: 29 AugustAbstract: Higher attention is currently being paid for the partnership in between indoor environment and childhood allergies, however, the lack of dependable information as well as the disparity amongst various locations hinders reputable assessment on the relationship. This study focuses on the impact of indoor pollution on Chinese schoolchildren and the relationship between distinct household and well being problems suffered. The epidemiological questionnaire survey plus the field measurement with the indoor thermal atmosphere and primary air pollutants such as CO2 , fine particulate matter (PM2.5 ), chemical pollutants and fungi had been performed in six Chinese cities. A total of 912 questionnaires were eligible for statistical analyses and sixty homes with schoolchildren aged 92 have been chosen for field investigation. Compared with Chinese national standards, inappropriate indoor relative humidity (30 or 70 ), CO2 concentration exceeding 1000 ppm and high PM2.Semaphorin-7A/SEMA7A Protein Purity & Documentation 5 levels were found in some monitored houses.Wnt3a Surrogate Protein Source Di(2-ethylhexyl) phthalate (DEHP) and dibutyl phthalate (DBP) were essentially the most often detected semi-volatile organic compounds (SVOCs) in home dust.PMID:25429455 Cladosporium, Aspergillus and Penicillium had been detected in both indoor air and home dust. This study indicates that a thermal atmosphere with CO2 exceeding 1000 ppm, DEHP and DBP exceeding 1000 /g, and higher amount of PM2.5 , Cladosporium, Aspergillus and Penicillium increases the danger of children’s allergies. Keyword phrases: indoor pollution; schoolchildren; allergic diseases; field investigation; fine particulate matter (PM2.five ); semi-volatile organic compounds (SVOCs); fungi1. Introduction The indoor atmosphere is of excellent value to human wellness as in modern society individuals devote approximately 90 of their time indoors, particularly at their own homes [1]. In general, youngsters spend additional time indoors than adults. In such a situation, and aligned together with the accelerated development of their extra immature organs which realize greater metabolic prices [4,5], children are extra susceptible to the effects of indoor environmental exposure. Together with the fast modernization and urbanization of China, the prevalence of childhood allergic ailments for example asthma, rhinitis and eczema have correspondingly been quickly escalating over the current decades [6,7]. A large-scale survey on childhood asthma in China conducted by the National Cooperative Group indicated that the prevalence of asthma be.
