Case Studies

Volatile organic compounds (VOCs) are a type of organic chemical commonly found in furniture, carpets and paints used indoors. VOCs easily evaporate at room temperature into the air, and given that some are known to cause respiratory problems, the ability to reliably control exposure to VOCs is crucial to protecting public heal...

Euro 5b and 6b and its predecessors involve both the initial type testing of new automotive engines and, as emissions change over time, the periodic testing of engines throughout their lifetimes. Since their introduction, the Euro regulations have significantly reduced exhaust pollution by progressively decreasing the permitted...

Congested areas such as city centres still suffer from elevated levels of certain pollutants - in particular NO2 , which is associated with adverse effects on health including reduced life expectancy. To tackle the problem, Switzerland, a leading player striving towards cleaner air, is introducing improved automotive exhaust em...

Pollution from road vehicles is regulated to protect ambient air quality and new passenger cars must meet the Euro emissions standards before they can be approved for sale in the EU. However, congested areas such as city centres still suffer from elevated levels of certain pollutants - in particular NO2 , which is associated wi...

Since their introduction, the Euro regulations have significantly reduced exhaust pollution by progressively decreasing the permitted emissions. As a consequence, the low levels of particulate permitted by the next iteration of Euro regulations, Euro 6c, due to be implemented in September 2017, are now beyond the sensitivity of...

Earth-based measurements of solar UV radiation are currently made using complex scanning spectroradiometers, installed at a limited number of monitoring stations worldwide. These instruments are expensive to purchase and maintain, and time consuming to use. The introduction of newer, faster compact CCD array spectroradiometers,...