Ionization smoke detector is more sensitive to smaller smoke particles than the photoelectric type detectors. In a fire, the alarm triggering times between these two types are similar. But in a smoldering fire, when big particles are released, photoelectric detectors are triggered earlier.
Tag archives: air
One of the most popular gas detection devices we use at home is the thermostat. It usually consists of temperature and humidity sensors. Temperature sensors are categorized into two basic types: Contact Temperature Sensor and Non-Contact Temperature Sensor. Contact Temperature Sensors requires physical contact with the detected object while the Non-Contact type doesn’t. The thermostat is categorized as being the contact sensor type. There are also four common types of temperature sensors including a thermistor, Resistive Temperature Device (RTD), thermocouple and Integrated Silicon Linear Sensor.
Urban planning can be described as a technical process that deals with the development and use of land. This includes but is not limited to the use and protection of the environment, the design of urban centers, creating communities, accommodating growth and implementing plans that facilitate the growth and revitalization of towns, cities and metropolitan areas of various sizes.
This year, the United Kingdom saw poor levels of air quality caused by high levels of carbon dioxide and nitrogen dioxide emissions, amongst others. About 20,000 to 30,000 premature deaths are attributed to air pollution per year across England. Populations like the elderly, babies, and pregnant mothers are the most vulnerable to suffering ...
The Aviation, Forest Fire and Emergency Services (AFFES) reported that Ontario saw a smaller number of forest fires in 2016 compared to last season however this year's forest fires burned larger areas of land and were harder to control. Both human, natural, and lightning-caused fires were reported.
Forest fires, however, are important and beneficial ...
Many indoor household products that we use, often to enhance our lives or clean our homes, such as cleaning supplies and furniture, contain potentially hazardous compounds called ‘volatile organic carbons’, also known as VOCs. Due to our dependence on these products, indoor air quality may actually be poorer than outdoor air quality.
Dogs are a man’s best friend ... Unfortunately, many homeowners do not realize that we share the same environment and diseases with our pets.
Over the last few decades there has been a decline in the number of pollinators i.e. insects that help in the pollination of flowers and production of fruits. Pollination is the process pollen grains are transferred from the male parts of a flower to the female parts of another. It is the sexual reproduction method of plants following which the ovules mature into seeds and the flowers change into food.