BACKGROUND AND OBJECTIVE Road tunnels are increasingly important components of urban infrastructure. However, knowledge of their health impact on surrounding communities is limited. Our objective was to estimate the short-term respiratory health effects of exposure to emissions from a road tunnel ventilation stack. METHODS We conducted a randomised cross-over cohort study in 36 volunteers who...

The paper analyses the performance of a five-storey apartment building equipped with modern passive stack ventilation in Nordic conditions. system was retrofitted 2019, and novel self-regulating air inlet devices filters were equipped. simulated IDA ICE software, where model terminal units developed using manufacturer product data. Several case scenarios created to analyze effects poor maintena...

Indoor air quality affects the health of building users so that every needs ventilation. The ume kbubu was built without using ventilation to get warm temperatures in but inside is highly contaminated with carbon dioxide. addition roof expected produce a stack effect phenomenon kbubu. purpose this research measure level dioxide and speed at which smoke moves out building. method used computer s...

Infectious aerosol dispersion poses significant infection risks (i.e., COVID-19) in classrooms due to dense and long occupancy. Natural ventilation is an effective strategy reduce airborne transmission. The building-related parameters, particularly openings, determine the natural effectiveness reducing contaminant dispersion, necessitating inquiry complex airflow patterns. This paper investigat...

Sustainable tall buildings that provide comfortable, healthy and efficient indoor environments are clearly desirable as the densification of living and working space for the world’s increasing population proceeds. For environmental concerns, these buildings must also be energy efficient. One component of these tasks is the provision of indoor air quality and thermal comfort, which can be enhanc...

Sustainable tall buildings that provide comfortable, healthy and efficient indoor environments are clearly desirable as the densification of living and working space for the world’s increasing population proceeds. For environmental concerns, these buildings must also be energy efficient. One component of these tasks is the provision of indoor air quality and thermal comfort, which can be enhanc...

Advanced naturally ventilated systems based on integration of basic natural ventilation strategies such as cross-ventilation and stack effect have been considered to be a key element of sustainable design. In this respect, there is a pressing need to explore the potential of such systems to achieve the recommended occupant comfort targets throughout their lifetime without relying on mechanical ...

INDIAN PEDIATRICS 1211 VOLUME 40DECEMBER17, 2003 randomizing infants to CPAP or intubation, the primary outcome being the incidence of Chronic Lung Disease. What would be of interest is to identify variables, which will help recognize babies likely to fail trial of CPAP, so that ventilation could be initiated in them straight away. Arvind Sehgal, Jacqueline Stack, Department of Newborn Care, Li...