Utveckling av lågkostnads sensorsystem för mätning av luftkvalitet
(2026) EEML05 20261Division for Biomedical Engineering
- Abstract
- Air quality is affected by airborne particles and gases such as PM2.5, volatile organic compounds (VOC), and nitrogen oxides (NOx), as well as environmental factors such as humidity and temperature, all of which influence human health and the spread of airborne diseases. While research grade air quality instruments provide accurate measurements, they are often large, expensive and difficult to utilize in everyday environments. Therefore this project investigated whether low-cost sensors have the ability to provide comparable measurements and be used for continuous monitoring of indoor and outdoor air quality.
Using an Arduino Mega, a portable sensor system was constructed with a Sensirion SEN55 sensor and a sound sensor. The sensor... (More) - Air quality is affected by airborne particles and gases such as PM2.5, volatile organic compounds (VOC), and nitrogen oxides (NOx), as well as environmental factors such as humidity and temperature, all of which influence human health and the spread of airborne diseases. While research grade air quality instruments provide accurate measurements, they are often large, expensive and difficult to utilize in everyday environments. Therefore this project investigated whether low-cost sensors have the ability to provide comparable measurements and be used for continuous monitoring of indoor and outdoor air quality.
Using an Arduino Mega, a portable sensor system was constructed with a Sensirion SEN55 sensor and a sound sensor. The sensor system was able to measure PM2.5, temperature, humidity, VOC, NOx and sound levels. Reference measurements were first performed by comparing the low cost sensors with research grade instruments under controlled environmental changes. The validated system was then used for 24 hour indoor and outdoor monitoring.
The results showed that the low-cost sensors generally followed the same trends as the reference instruments, although with lower sensitivity and accuracy. Therefore the study concludes that low-cost sensors cannot replace research grade instruments in terms of precision, however, they are capable of detecting trends and environmental changes. Furthermore the low-cost sensor system can be considered useful for affordable and
continuous monitoring of air quality in both indoor and outdoor environments. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/student-papers/record/9235372
- author
- Johansson, Anna LU and Brönmark Åkesson, Maja LU
- supervisor
- organization
- alternative title
- Development of low-cost sensor system for air quality measurements
- course
- EEML05 20261
- year
- 2026
- type
- M2 - Bachelor Degree
- subject
- language
- Swedish
- id
- 9235372
- date added to LUP
- 2026-06-23 12:44:13
- date last changed
- 2026-06-23 12:44:13
@misc{9235372,
abstract = {{Air quality is affected by airborne particles and gases such as PM2.5, volatile organic compounds (VOC), and nitrogen oxides (NOx), as well as environmental factors such as humidity and temperature, all of which influence human health and the spread of airborne diseases. While research grade air quality instruments provide accurate measurements, they are often large, expensive and difficult to utilize in everyday environments. Therefore this project investigated whether low-cost sensors have the ability to provide comparable measurements and be used for continuous monitoring of indoor and outdoor air quality.
Using an Arduino Mega, a portable sensor system was constructed with a Sensirion SEN55 sensor and a sound sensor. The sensor system was able to measure PM2.5, temperature, humidity, VOC, NOx and sound levels. Reference measurements were first performed by comparing the low cost sensors with research grade instruments under controlled environmental changes. The validated system was then used for 24 hour indoor and outdoor monitoring.
The results showed that the low-cost sensors generally followed the same trends as the reference instruments, although with lower sensitivity and accuracy. Therefore the study concludes that low-cost sensors cannot replace research grade instruments in terms of precision, however, they are capable of detecting trends and environmental changes. Furthermore the low-cost sensor system can be considered useful for affordable and
continuous monitoring of air quality in both indoor and outdoor environments.}},
author = {{Johansson, Anna and Brönmark Åkesson, Maja}},
language = {{swe}},
note = {{Student Paper}},
title = {{Utveckling av lågkostnads sensorsystem för mätning av luftkvalitet}},
year = {{2026}},
}