tube . Usually it is required some adjustment to a lower detection limit for Indoor Air Quality work . Direct Reading Meter ( DRM ); this device estimates air concentration through several detection values . Some go through chemicals ( e . g . CO2 levels ), chemical groups or broad pollutant categories ( e . g . all respiratory particles which are done using scattered light ). Detecting the above will bounds and lessens the time developed for improved IAQ .
Detector tube kit ; this device usually includes a hand pump which draws an identified volume of air through a chemically treated tube planned to react with specific air pollutants . The length and depth of the color stain within the tube relates to chemical concentration ( e . g . Acidity ).
Personal Monitoring Devices ( PMD ); also referred to as dosimeters are worn or carried by individuals and are usually used to measure individual ’ s contact to specific chemicals . There are two types of PMDs ; one which do not carry pumps and they are called passive monitors and other which does include pumps and are called active monitors ; such devices are used in research currently . There is a big possibility that such devices may be useful in IAQ examination for public and commercial areas ad buildings ( Jacobs et al . 2007 ).
Many more devices can and will be found in the market which will help to detect IAQ very much effectively and efficiently . What makes people have access for such devices more than others or selectively choose Device A over Device B ? The following criteria are the main by which professionals and people choose .
Table 2 : Criteria for choosing IAQ measurements ( EPA 1991 ; Hood 2005 )
Ease of use Output
Time required for to measure Analysis required vs . Direct-reading Portability
Quality assurance
Customer Support availability at supplier Maintenance Calibration requirements
Instantaneous readings vs . Time-averaged Available accessories Data logging compatibility with computer Sensitivity
Cost
Re-Usable or just one Purchased or Rented Affordability
Indoor Noise Noise pollution is not less in its affect than other kinds which affect the indoor environment comfort . Noise can be really harmful when it exceeds a certain level ; causing physical ( especially when it reflects to hearing which is negatively affected and directly correlated to noise and heavy volume disturbances caused by many factors ) and physiological health problems . Factors contributing and causing noisy indoor environments usually is a result of residential buildings , surrounding neighborhoods , roads and rails system if any and most importantly it is from HVAC system and mechanical systems ( if not installed or maintained probably ) in buildings which frame inhabitants every time and anywhere ( Sherman 2004 ; Sherman and Walker 2009 ).
Thus , what is environmental noise ? It is that noise which comes from any source other than an industrial workplace ; it is also called community , domestic , or residential noise . This type of noise mostly comes from traffic , includes road and air traffic , and construction sites and equipment operations and all other types of similar work . Environmental noise is also an outcome of neighborhoods , diners , events , car parks and many much more .
792 ZEMCH 2015 | International Conference | Bari - Lecce , Italy