It’s no secret that traffic has a huge impact on air quality; the World Health Organization estimates that road transport is responsible for up to 30% of particulate emissions in European cities and up to 50% in OECD countries as a result of diesel traffic.
Exposure to this kind of pollution has both short-term and long-term impacts on health; studies indicate that traffic pollution is associated with increased allergy and asthma-related symptoms, a higher risk of cancer after prolonged exposure, possible fertility impacts, and more.
The Air Pollution Risk for Drivers and Passengers
When we talk about the health impact of traffic-caused pollution, we usually think about the exposure of pedestrians living, commuting or working near to busy roads rather than the drivers and passengers of cars themselves.
However, our current vehicles do not protect us from pollution exposure. What is more, it seems that drivers are actually exposed to the highest levels of air pollution while on the road.
An interesting air quality experiment was conducted in London by Healthy Air Campaign, King's College London and Camden Council: The study compared air pollution exposure in London among cyclists, pedestrians, bus passengers, and drivers or passengers in a car. The results showed that pedestrians and cyclists were exposed to lower levels of pollutants than the drivers and passengers inside the vehicles. This is because the cars themselves trapped a higher number of pollutants within the cabin.
As global awareness of the health impacts of air pollution increases and the smart mobility market continues to expand, so too will consumer demand for solutions that treat air quality and prevent in-cabin contamination. Recent automotive market studies predict that the global automotive sensor market will grow from $22800 in 2018 to $37299 by the end of 2025.
How Air Quality Control Improves Passenger Experience
Live air quality data has the potential to improve both the driver and passenger experience, by providing a means to prevent in-cabin contamination in the first place.
For example, up to date air quality information can be used to alert drivers to poor air quality and fire hazards at their location, prompting them to close windows and switch on the in-cabin air purification system.
The Limitations of Physical Sensors for the Automotive Sector
A lot of the conversation so far when it comes to integrating air quality information into automotive solutions has focused on the topic of physical air quality sensors.
Physical sensors do often a number of benefits when combined with effective filtration systems by helping to automate the process of blocking breathing hazards from entering the cabin, such as pollen grains, road dust and diesel soot. However, a ‘physical sensor only’ approach also presents a number of disadvantages when it comes to monitoring live air quality:
- As physical sensors are a hardware solution, they need to be integrated into the manufacturing process itself, turning their integration into a timely and costly venture for automotive OEMs. It is also much harder to retrofit air quality sensors later on, somewhat limiting OEMs and automotive suppliers that are looking to quickly respond to the market and establish a competitive advantage.
- While physical air quality sensors may give a good picture of real-time air quality at the driver’s exact location, they do not allow much scope for journey planning without forecast information or data for conditions at locations along the driver’s journey, which means the ability to plan ahead is considerably limited.
Moving Beyond Physical Sensors with Virtual Sensors
Cloud-based, real-time air quality data or in other words, ‘virtual sensors’, provides the key for OEMs and Tier 1 automotive suppliers looking to complement or replace existing air quality sensors. This method provides a far cheaper and simpler method when it comes to integration, which can be done through an API connection, meaning there are far fewer barriers for those looking to validate integrating air quality data in their vehicles
BreezoMeter’s ‘virtual sensors’ are powered by sophisticated modelling which is continuously checked for accuracy. This virtual approach has the potential to disrupt the automotive sensor market in a powerful way, by making it possible to deliver a more personalized consumer experience than sensors alone can achieve.
To explain further, real-time air quality information combined with data at a high, street-level resolution and global geographical coverage, gives information beyond the site of the car itself. Alongside forecast information, this means drivers can receive personalized navigation suggestions to help them choose the cleanest route from the journeys available; this approach also gives them the power to take preventative action before entering a polluted area such as activating the air purifier and closing the windows.
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