An overview of indoor air quality and its impact on respiratory health among Malaysian school-aged children

Choo, Chua Poh; Jalaludin, Juliana

doi:10.1515/reveh-2014-0065

Cited by 27 publications

(15 citation statements)

References 7 publications

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“…In cold environment, people stayed more time in their room with windows and doors closed to keep warm which lead to terrible ventilation and increase the infection chance (Choo and Jalaludin 2015).…”

Section: Discussionmentioning

confidence: 99%

Impact of meteorological changes on the incidence of scarlet fever in Hefei City, China

et al. 2016

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Studies on scarlet fever with meteorological factors included were few. We aimed to illustrate meteorological factors' effects on monthly incidence of scarlet fever. Cases of scarlet fever were collected from the report of legal infectious disease in Hefei City from 1985 to 2006; the meteorological data were obtained from the weather bureau of Hefei City. Monthly incidence and corresponding meteorological data in these 22 years were used to develop the model. The model of auto regressive integrated moving average with covariates was used in statistical analyses. There was a highest peak from March to June and a small peak from November to January. The incidence of scarlet fever ranges from 0 to 0.71502 (per 10 population). SARIMAX (1,0,0)(1,0,0) model was fitted with monthly incidence and meteorological data optimally. It was shown that relative humidity (β = -0.002, p = 0.020), mean temperature (β = 0.006, p = 0.004), and 1 month lag minimum temperature (β = -0.007, p < 0.001) had effect on the incidence of scarlet fever in Hefei. Besides, the incidence in a previous month (AR(β) = 0.469, p < 0.001) and in 12 months before (SAR(β) = 0.255, p < 0.001) was positively associated with the incidence. This study shows that scarlet fever incidence was negatively associated with monthly minimum temperature and relative humidity while was positively associated with mean temperature in Hefei City, China. Besides, the ARIMA model could be useful not only for prediction but also for the analysis of multiple correlations.

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Section: Discussionmentioning

confidence: 99%

Impact of meteorological changes on the incidence of scarlet fever in Hefei City, China

et al. 2016

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“…A study conducted in New York State primary and secondary schools organised by 501 teachers concluded that many classroom characteristics are probably associated with bad IAQ and over 40% of the teachers described a minimum of one health symptom associated with the building construction [27]. A review of the association between IAQ and its consequences on respiratory wellbeing in Malaysian students was proposed by Reference [28]. Despite the relatively small-scale epidemiologic evidence, Malaysian research proposes effective and relatively consistent evidence among IAQ and children's respiratory health.…”

Section: Related Workmentioning

confidence: 99%

An Internet of Things-Based Environmental Quality Management System to Supervise the Indoor Laboratory Conditions

Marques

Pitarma

2019

Applied Sciences

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Indoor air quality (IAQ) is not only a determinant of occupational health but also influences all indoor human behaviours. In most university establishments, laboratories are also used as classrooms. On one hand, indoor environment quality (IEQ) conditions supervision in laboratories is relevant for experimental activities. On the other hand, it is also crucial to provide a healthy and productive workplace for learning activities. The proliferation of cost-effective sensors and microcontrollers along with the Internet of Things (IoT) architectures enhancements, enables the development of automatic solutions to supervise the Laboratory Environmental Conditions (LEC). This paper aims to present a real-time IEQ-laboratory data collection system-based IoT architecture named iAQ Plus (iAQ+). The iAQ+ incorporates an integrated Web management system along with a smartphone application to provide a historical analysis of the LEC. The iAQ+ collects IAQ index, temperature, relative humidity and barometric pressure. The results obtained are promising, representing a meaningful contribution for IEQ supervision solutions based on IoT. iAQ+ supports push notifications to alert people in a timely way for enhanced living environments and occupational health, as well as a work mode feature, so the user can configure setpoints for laboratory mode and schoolroom mode. Using the iAQ+, it is possible to provide an integrated management of data information of the spatio-temporal variations of LEC parameters which are particularly significant not only for enhanced living environments but also for laboratory experiments.

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“…Although urban living is associated with having a better standard of living in developing countries and has been generally considered as a beneficial factor for children's health. However, a study in Malaysia found that children living in households or studying in schools in urban areas are more likely to suffer from respiratory illnesses compared with children living in homes or studying in schools in rural areas (20). Adverse factors for urban living include poor air quality especially in Chinese cities as Wuhan located (21).…”

Section: Introductionmentioning

confidence: 99%

Household environmental factors and children’s respiratory health: comparison of two cross-sectional studies over 25 years in Wuhan, China

Meng¹,

Cao²,

Li³

et al. 2021

J Thorac Dis

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Background: Over the recent decades, residential lifestyle and household environment have changed substantially with rapid development of industrialization and urbanization in China. Whether the prevalence of respiratory diseases changed is still lack of evidence. The objective of this study is to assess potential changes in children's respiratory disease prevalence and associated household environmental factors in Wuhan over a 25-year time interval. Methods: Two cross-sectional studies in the Period 1 (1993 to 1996) and Period 2 (2017 to 2018) were compared in this research. Elementary school children in period 1 (N=2,517) and in period 2 (N=3,152) were recruited in Wuhan, China. The respiratory health condition, home environmental factors, and family socioeconomic status of each subject were acquired through questionnaire survey using the same protocols in both periods. We used the Chi-square test to analyze the difference of household environmental factors (focused on three indoor air quality determinants) and children's respiratory health condition between two periods. Logistic regression models were used to assess the impacts of household environmental determinants on children's respiratory diseases and symptoms between the two studies, by adjusting a set of covariates. Results: The three indoor air quality determinants have reduced substantially in prevalence from period 1 to period 2: environment tobacco smoke (ETS) from 86.6% to 45.9%, household coal use from 47.6% to 4.9%, and kitchen smoke from 58.9% to 7.3%. The prevalence of certain respiratory symptoms in children significantly decreased, such as cough with colds (51.1% to 41.6%) and phlegm with colds (22.3% to 17.7%). The prevalence of asthma was 2.5% and 2.4% and that of bronchitis was 27.1% and 29.8% in both periods. Coal use was a risk factor for asthma in period 1 (OR =2.34, 95% CI: 1.30-4.23), while it was not significantly associated with prevalence of asthma in period 2 (OR =0.60, 95% CI: 0.08-4.51).Conclusions: Household indoor air quality determinants and respiratory health condition of children in Wuhan has been improved over the last 25 years. At present, kitchen smoke is an important factor affecting the prevalence of wheeze whatever child has a cold or not and reducing exposure to ETS could be beneficial to protect children to be less likely to develop bronchitis.

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An overview of indoor air quality and its impact on respiratory health among Malaysian school-aged children

Cited by 27 publications

References 7 publications

Impact of meteorological changes on the incidence of scarlet fever in Hefei City, China

Impact of meteorological changes on the incidence of scarlet fever in Hefei City, China

An Internet of Things-Based Environmental Quality Management System to Supervise the Indoor Laboratory Conditions

Household environmental factors and children’s respiratory health: comparison of two cross-sectional studies over 25 years in Wuhan, China

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