Air and Pollutant Transport from Attached Garages to Residential Living Spaces - Literature Review and Field Tests

The National Institute of Standards and Technology (NIST) is conducting a study on the indoor air quality (IAQ) impacts and engineering solutions related to the transport of pollutants from attached garages to residential living spaces. Natural or fan-induced pressure differences across air leakage paths in house-garage (HG) interfaces can result in the transport of the contaminants generated in garages into adjacent living spaces.

Planning of ventilation for a large parking space by using temperature difference

We designed a roofed parking lot for a large wholesale market in Sapporo City to protect trucks and cars from snow and rain. Every day, the area attracts a large number of vehicles including trucks. Drivers often leave the engines running for heating in winter and cooling in summer. Exhaust gases poison the air, creating a serious environmental problem. The roof of the new parking lot is equipped with two kinds of chimneys, such as high chimneys to exhaust waste air and low chimneys to supply fresh air.

Naturlijke ventilatie en parkeergarages. Natural ventilation in parking garages.

An update on the situation for naturally ventilating garages for motor vehicles.

Attached garages and indoor air quality.

We spend 90% of our time indoors, so we have to consider how a home's design and construction can affect indoor air quality. To achieve superior indoor air quality it is important to:

  • remove any contaminants at the source of production;
  • reduce the contaminants built into the house;
  • exchange the indoor air with.fresh outdoor air.

CFD prediction of contaminant distribution in indoor car park.

The assessment of human exposure to airborne contaminant is an important issue in building design. The physiological significance of such exposure and technical means to minimise such risks have long been known in literatures. (1, 2, 3) In recent years, computational works have increasingly been seen used as design assessment tools as an alternative to site measurement and wind tunnel tests.

Kein Feuer ohne Rauch. No fire without smoke.

                 

A survey of exposure to Diesel engine exhaust emissions in the workplace.

Forty sites were visited during a survey of exposures to diesel engine exhaust emissions. Personal and background exposure to gaseous components, respirable dust, elemental carbon, organic carbon and total carbon were measured and details of control systems were recorded. The results show a wide spread in exposure patterns reflecting the different work practices, job categories of employees and the control methods used. However, sites where fork-lift trucks were in use consistently produced the highest exposures.

Carbon monoxide exposure from a vehicle in a garage.

                      

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