#Urban #Air_Quality #Low_Cost #Sensor #Calibration #Air_Pollution #PM #Ozone #Environment #Monitoring #Atmospheric_Science #Research #Collaboration

@ieeexplore.ieee.org @ieeeorg.bsky.social @ieeesensorsalert.bsky.social

Grateful to Ahmedabad University for support and all co-authors for their collaboration. Thankful to PRL Ahmedabad for providing sensor-reference co-location facilities.

Researchers working on low-cost sensors, urban air pollution, or calibration methods are welcome to connect and collaborate.

This study addresses a key regional gap in LCS evaluation in India and shows that careful calibration is essential for reliable low-cost monitoring.
Properly corrected LCS networks can support long-term trend analysis and better understanding of aerosols and ozone in growing cities.

Ozone calibration, using reference O₃ plus temperature and humidity, showed strong agreement between sensors and R² ≈ 0.7 with reference data. Corrected LCS data captured typical urban air quality patterns.

Why this matters?

We calibrated particulate matter (PM) sensors (OPC-N3) & electrochemical gas sensors (ozone - OXB4 from Alphasense) using reference instruments under real urban conditions.

Key findings:
PM₂.₅ accuracy improved significantly after correcting particle mass size distribution. R² ≈ 0.7, nMAB ≈ 29%.

Region-specific calibration is essential, and such studies are scarce for urban regions of western India, particularly Ahmedabad.

What we did?

#Advancing air-quality #science requires #collective_effort, and I look forward to contributing to that #shared_goal.

Presenting at this prestigious conference and engaging with an inquisitive and diverse audience was a remarkable #experience. I invite #researchers interested in mobile #air_quality_measurements and #source_identification to #connect and #explore potential #collaborations.

Using #mobile #measurements of aerosol size distribution, #particulate_matter mass, and #multi-wavelength #black_carbon mass, our study identified distinct #pollutant source signatures across the #Urban Core, Ring Road, and Peri-Urban regions of #Ahmedabad.

This work was also #featured in "The Indian Express" article (indianexpress.com/article/citi...), amplifying its relevance to #public_health 😷

🤝 I’m open to #collaborations and #discussions on advancing air quality research—feel free to connect or reach out!

ahduni.edu.in/academics/sc...

This work emphasizes that improving #ambient_air_quality alone isn’t enough—effective #IAQ_management must combine outdoor #pollution_control with smart indoor practices like #ventilation and #filtration.

🔎 Our #findings show that:
#IndoorAirQuality was 50% of times poorer than outdoors, even in rooms without active emission sources ❗
In spaces with sources like cooking, soldering, grinding or cutting, PM2.5 levels were up to twice as high as outdoors ‼️

In this study, we evaluated #indoor and #outdoor #particulate_matter (PM2.5) levels across different microenvironments using #low_cost_sensors (LCS), #calibrated against an FEM #reference instrument using #Multiple_Linear_Regression (MLR) technique.

A big thank you to my PhD guide Professor Aditya Vaishya and Ahmedabad University for their constant support and encouragement throughout this journey.

Let’s keep pushing the boundaries of #AirQualityResearch! 

#LowCostSensors #IndoorAirQuality #Collaboration #PhDLife #EnvironmentalHealth (4/4)

- Low-cost air quality sensors
- Indoor air quality exposure
- Spatiotemporal variations in urban ambient air quality

I invite anyone interested in these fields to #connect and #explore #opportunities to #collaborate! Together, we can address critical challenges in #AirQualityResearch. 🌍 (3/4)

🌟 My work will also be published in the #conference_proceedings, marking an important milestone in my #PhD journey.

Presenting at IASTA 2024 and engaging with so many curious minds was truly inspiring. The interactions reaffirmed the growing interest in domains like: (2/4)

Agreed! 💯

#indoorairquality #researchmatters #airqualityresearch #healthyindoors #environmentalscience #cleanairmatters #collaborativescience