The recent trend towards energy conservation measures have in some cases led to airtight building construction that can often create problems with Indoor Air Quality (IAQ). Some 'green buildings' (also known as ‘green construction’ and ‘sustainable buildings’) have ignored the issue of IAQ in pursuit of energy saving measures.
Ventilation systems are set to minimize the amount of fresh air entering and circulating within the building. This restriction allows a build up of air contaminants within the building, creating problems associated with poor indoor air quality including sick building syndrome.
Although in many cases the issue of indoor air quality is addressed, the primary concern of ‘green building’ is the overall impact the building and building process has on the environment and does not have the health of the occupants as its priority. So, at times, this focus can be at the expense of indoor air quality and ultimately the building occupant’s health.
Residential, retail and public buildings are often associated with these problems, as are many workplace environments.
Health effects from indoor air pollutants may be experienced soon after exposure. The immediate ones are usually short-term and treatable, including:
● eyes, skin, nose, and throat irritation;
● upper respiratory congestion;
● dizziness; and
Long-term exposure to low pollutant levels could have an affect on an individual’s health in future years.
The most accurate way to monitor a building's Indoor Air Quality is by continuously monitoring a number of parameters that contribute to a building's indoor air quality. PPM Technology's Wireless IAQ Profile Monitor system can continuously detect, measure and record a number of customer specified parameters, including Temperature, Humidity, Nitrogen Dioxide, Carbon Monoxide, Carbon Dioxide, Sulphur Dioxide, Ozone, Ammonia, Formaldehyde, Glutaraldehyde, Chlorine, Methane and TVOC’s.
Real-time functions enable immediate warnings of the presence of harmful gases in the air thus protecting employees and the public; buildings can be immediately evacuated giving minimal exposure to the building occupants.
The system has been designed to be easy to set-up and operate. A manager PC simply connects to the wireless network using a Telegesis ZigBee USB module, allowing for transmitting and receiving of information to and from a particular wireless unit.
The wireless units communicate via the sophisticated and reliable Zigbee wireless mesh network; the network can be extended easily by adding repeater nodes or additional PPMonitor or Mini PPMonitor units; each unit can be configured with unique sensor specifications if required. This allows complete monitoring of the Indoor Air Environment in any building layout.
The PPMonitor Software allows the entire wireless system to be managed from a single PC, the PC can pre-set a number of different exposure levels to trigger when limits are exceeded; these could be visible or audible alarms or to control 3rd party systems such as ventilation systems. The PPMonitor software enables the data to be viewed graphically, produce reports and statistical data.
Analysis of the recorded data over time allows for more efficient management of resources and energy.