The aim of the present work is to maximize indoor environmental quality (IEQ), in particular air quality, and energy performance in schools, when having different ventilation alternatives combined with carbon dioxide feedback. In this effort, trial measurements and energy simulations were conducted to predict and compare the indoor environmental and energy performance in an otherwise similar sc...

What is air quality? Zhang (2005) defines air quality as the degree of pollution of clean air. Clean air is the air that is free from impurities. Air quality can be determined by measuring the concentration of pollutants in the air. The lower the concentration of airborne pollutants, the better is the air quality. Auvermann (2006) defined air pollutants as compounds or materials that, when susp...

Objective To assess the status of the legal framework for air quality control in all countries of Latin America and Caribbean (LAC); to determine the current distribution of air monitoring stations and mean levels of air pollutants in all capital and large cities (more than 100 000 inhabitants); and to discuss the implications for climate change and public policymaking. Methods From January 2...

During the last few decades, European legislation has driven progress in reducing air pollution Europe through emission mitigation measures. In this paper, we use a chemistry transport model to assess impact on ambient quality of measures considered for 2030 scenarios with existing (WEM2030) and additional (WAM2030). The study estimates general improvement WAM2030 scenario, no non-compliant zon...

A network of low-power wireless sensors for the detection of air quality pollutants (acetone, toluene, ammonia , formaldehyde, ethanol, benzene, dichloromethane, acetic acid, xylene and dimethylacetamide) is described in this paper. The network consists of several sensor nodes responsible for receiving information and wirelessly, through ZigBee protocol, sending it to a gateway connected to the...

BACKGROUND The complex hospital environment requires special attention to ensure healthful indoor air quality (IAQ) to protect patients and healthcare workers against hospital-acquired (nosocomial) infections and occupational diseases. The aim here is to recommend effective guidelines for the control and management of hospital IAQ. MATERIAL/METHODS The authors have done an extensive literatur...

This report is prepared based on the recommendations of the Expert Group constituted by Central Pollution Control Board (CPCB), and is being released for seeking public views/comments. The report is also available on CPCB's website, [email protected].

To control indoor air quality, a novel freon gas sensor of piezoelectric microcantilever coated with zeolite has been developed in this paper. Excited by an ac voltage, the microcantilever is employed to detect the concentration of sample freon-12 gas ranged from 0 to 100 ppm by the effect of the specific MFI zeolite modification. High selectivity and sensitivity combined with excellent repeata...

BACKGROUND AND PURPOSE Pakistan, during the last decade, has seen an extensive escalation in population growth, urbanization, and industrialization, together with a great increase in motorization and energy use. As a result, a substantial rise has taken place in the types and number of emission sources of various air pollutants. However, due to the lack of air quality management capabilities, t...