The low-cost Continuous Ambient Air Quality Monitoring System (CAAQMS) is compact, scalable, cost-effective for a dense network of air quality monitors. Read Full Article here: https://oizom.com/low-cost-air-quality-sensors-oizom/ Public health challenges and risk assessment requires more refined and varied monitoring approaches to reduce exposures and risks. Hence, authorities need to stringent pollution control measures. This can be achieved by widespread air monitoring at the microscale, which is only possible through compact, highly scalable CAAQMS. Currently, there are no set government regulations for low-cost CAAQMS as they are still subjective to interference by ambient conditions. But looking at the huge success and rising demand for these low-cost air quality monitors, governments across the globe have started considering to include these sensors under the Air Regulations. Currently, guidelines are underway for air quality sensor technology standards in the European Union, the United States, and China. In India, The government has assigned the Council of Scientific & Industrial Research (CSIR)-National Physical Laboratory (NPL) to come up with guidelines to certify air quality monitoring instruments. CSIR-NPL will be the national verification agency for the purpose and they shall develop the necessary infrastructure, management system.

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2. Low-Cost Ambient Air Quality Monitoring System
The Future of Air Monitoring in India
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3. As per the Greenpeace and AirVisual
analysis of air pollution readings from
3,000 cities around the world for the year
2018, India tops the list.
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4. Low-cost Air Quality Monitors
All low-cost sensors consist of a few basic elements:
● The sensor element that senses the parameter of interest
● A transducer that converts the response from electrical signals
● Data storage or link to a communication device
● Source of power (e.g. battery or solar energy)
The biggest advantage of a low-cost Continuous Ambient Air Quality Monitoring System (CAAQMS) over
conventional ones is that it is compact, lightweight and cost-effective.
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5. What Makes Low-Cost
Air Monitors Compact?
These low-cost sensors use micro-
fabrication techniques and
contain micro-electro-mechanical
systems (MEMS) made of optical
and nanostructured elements,
making them lighter and
inexpensive.
The compactness is
complemented by low-power
consumption and energy-efficient
sensor circuits.
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3 times smaller than Conventional Air
Quality Monitors

6. How can a Low-Cost Sensor Benefit Us?
Real-time Data
Advanced technologies with AI used in new sensor-
based air quality monitors have enabled real-time
data collection and analysis. Real-time monitoring of
major pollutants and the continuous dissemination of
the data is important for both policy and public
opinion.
Geospatial Monitoring
Low-cost compact air monitors or CAAQMS enables
small-scale environmental data monitoring. It can be
deployed in large numbers across urban and rural
scape to generate local data.
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7. How can a Low-Cost Sensor Benefit Us?
Ubiquitous Monitoring
These low-cost air monitors can be installed on any smart pole to collect ambient air data. This allows for
hyperspatial data acquisition encompassing a wider area for high-resolution exposure mapping of the city.
Deploying these sensors in large numbers can also assist in detecting pollution hotspots and creating
emission inventories.
High Precision Data
Advanced IoT based air quality monitors can provide higher environmental data accuracy through
appropriate maintenance like sensor calibration, sensor drift and cross-sensitivity corrections, robust
hardware, periodic sensor replacement, etc.
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8. How can a Low-Cost Sensor Benefit Us?
360-Degree Environment Monitoring
The data acquired from the low-cost air quality
sensors monitor dust particles, toxic & odor gases,
along with weather parameters within a single
enclosure.
Public Awareness
The low-cost sensors have made data handling
very easy, which allows wide options of data
visualization. The data can be visualized by a
number of mobile and web-based applications
and is readily available for use by citizens.
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9. How can a Low-Cost Sensor Benefit Us?
Community Participation
Many of these sensors do not require specialized
knowledge, which encourages public
participation in the process. This has given birth
to community-based monitoring, which is driven
by local information needs and community
values.
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10. Some Recent Low-Cost Air Quality Monitor Deployment
As of June 2019, the scientists at the University of Southampton deployed low-cost air pollution sensors in
Southampton to achieve cost-effective pollution monitoring on a wider scale.
San Jose State University installed a network of 20 Low-Cost Air Quality Monitors in the Imperial Valley of
Southern California to analyze fine particulate matter (PM2.5) in the region using dispersion modelling.
London’s pollution data can now be visualized on the website breathelondon.org. The city monitors the
ambient air pollution through a network of AQMesh low-cost air quality monitoring pods.
Since April 2019, Granada province in Spain has started monitoring Granada’s ambient air quality using
Oizom’s low-cost air quality monitor Polludrone to provide data-driven better healthcare suggestive actions.
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11. To Conclude
Currently, there are no set government regulations for low-cost CAAQMS as they are still subjective to
interference by ambient conditions. But looking at the huge success and rising demand of these low-cost
air quality monitors, governments across the globe have started considering to include these sensors
under the Air Regulations. Currently, guidelines are underway for quality air sensor technology standards
in the European Union, the United States, and China.
In India, Council of Scientific & Industrial Research (CSIR)-National Physical Laboratory (NPL) is tasked by
the government with certifying air quality monitoring instruments. CSIR-NPL is designated a national
verification agency for the purpose and they shall develop the necessary infrastructure, management
system.
www.oizom.com

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Oizom Instruments Pvt. Ltd.
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Prahladnagar, Ahmedabad - India
+91-8866660025 | contact@oizom.com
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