# Scientific Discourse **URL:** https://forum.sensor.community/c/scientific-discourse/8.md [Latest](https://forum.sensor.community/latest.md) · [Categories](https://forum.sensor.community/categories.md) --- ## [About the Scientific Discourse category](https://forum.sensor.community/t/about-the-scientific-discourse-category/344)
**Author:** [@ohheyitsdave](https://forum.sensor.community/u/ohheyitsdave)\ **Replies:** 0
Analysis, evaluations and other scientific discussions --- ## [Sound/noise measurement project in Den Haag, Netherlands](https://forum.sensor.community/t/sound-noise-measurement-project-in-den-haag-netherlands/8421)
**Author:** [@bertrik](https://forum.sensor.community/u/bertrik)\ **Replies:** 0\ **Last updated:** [July 18, 2026, 8:40pm UTC](https://forum.sensor.community/t/sound-noise-measurement-project-in-den-haag-netherlands/8421 "2026-07-18T20:40:53Z")
Hi, I noticed this news article about a plan to find 100 people to do noise measurements in the city of Den Haag, Netherlands: Geluid in de stad meten? Vraag een meetapparaat aan - Den Haag Did you hear about this? Per… --- ## [MADAVI January zip file](https://forum.sensor.community/t/madavi-january-zip-file/8283)
**Author:** [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)\ **Replies:** 1\ **Last updated:** [February 12, 2026, 10:20pm UTC](https://forum.sensor.community/t/madavi-january-zip-file/8283 "2026-02-12T22:20:08Z")
Hi All, We have noticed that the January MADAVI Zip files are not available for download. Does anyone have any information about this, please? We are doing a comparison of over 10 sensors and the data isn’t available f… --- ## [Coverage comparison with official stations](https://forum.sensor.community/t/coverage-comparison-with-official-stations/8245)
**Author:** [@aemdv](https://forum.sensor.community/u/aemdv)\ **Replies:** 2\ **Last updated:** [February 9, 2026, 12:01pm UTC](https://forum.sensor.community/t/coverage-comparison-with-official-stations/8245 "2026-02-09T12:01:42Z")
Hello everyone, first of all I’d like to thank the community, since you have a great project going here. Some colleagues and myself recently published a paper in Atmospheric Pollution Research that made use of the Senso… --- ## [\[BETA RELEASE\] - A Python automatic downloader & stats app for sensors.community](https://forum.sensor.community/t/beta-release-a-python-automatic-downloader-stats-app-for-sensors-community/8182)
**Author:** [@Zavedi6970](https://forum.sensor.community/u/Zavedi6970)\ **Replies:** 0\ **Last updated:** [November 9, 2025, 12:41am UTC](https://forum.sensor.community/t/beta-release-a-python-automatic-downloader-stats-app-for-sensors-community/8182 "2025-11-09T00:41:12Z")
Hey there! I’m a scientist currently doing some relevant research. Well, any way, part of this research involves me collecting air quality data over specific, past periods and then processing it in scientifically-accurat… --- ## [Where is the truth ? comparison between SDS011, SEN55, PMS5003](https://forum.sensor.community/t/where-is-the-truth-comparison-between-sds011-sen55-pms5003/7010)
**Author:** [@metron6](https://forum.sensor.community/u/metron6)\ **Replies:** 14\ **Last updated:** [August 21, 2025, 8:26am UTC](https://forum.sensor.community/t/where-is-the-truth-comparison-between-sds011-sen55-pms5003/7010 "2025-08-21T08:26:15Z")
so, where is the truth ? we build our networks on SDS011, but i think it counts less than the two other sensors. Test is running in the same place, my balcony, with the same other equipment, nodemcu, case, etc.. --- ## [SDS011 refuses to work with latest firmware NRZ-2024-135](https://forum.sensor.community/t/sds011-refuses-to-work-with-latest-firmware-nrz-2024-135/7017)
**Author:** [@kmm59](https://forum.sensor.community/u/kmm59)\ **Replies:** 1\ **Last updated:** [August 14, 2025, 10:47pm UTC](https://forum.sensor.community/t/sds011-refuses-to-work-with-latest-firmware-nrz-2024-135/7017 "2025-08-14T22:47:02Z")
Hi team, my sds011 sensor has worked for some weeks in the past but currently it does not work anymore with firmware NRZ-2024-135. I have checked to flash the esp-8266 with the SDS011 example SW from the Arduino IDE and… --- ## [DMNS shows 3 db after update](https://forum.sensor.community/t/dmns-shows-3-db-after-update/6904)
**Author:** [@Toshibaer](https://forum.sensor.community/u/Toshibaer)\ **Replies:** 0\ **Last updated:** [June 13, 2025, 9:12am UTC](https://forum.sensor.community/t/dmns-shows-3-db-after-update/6904 "2025-06-13T09:12:08Z")
Dear reader, after update of the teensy 4.0 to ver 5.5. got only values of 3 db. (Via webinterface) Updated the ESP to latest version from Helmut gitters Github page without sucess. Never change a runninng system i kn… --- ## [Data inconsistency between SEN55 and SDS011](https://forum.sensor.community/t/data-inconsistency-between-sen55-and-sds011/4414)
**Author:** [@metron6](https://forum.sensor.community/u/metron6)\ **Replies:** 6\ **Last updated:** [June 10, 2025, 8:45am UTC](https://forum.sensor.community/t/data-inconsistency-between-sen55-and-sds011/4414 "2025-06-10T08:45:10Z")
data inconsistency between SEN55 and SDS011. same balcony, same conditions… different data… --- ## [Causes and handling of abnormal values](https://forum.sensor.community/t/causes-and-handling-of-abnormal-values/3102)
**Author:** [@Deciphair](https://forum.sensor.community/u/Deciphair)\ **Replies:** 1\ **Last updated:** [March 3, 2025, 7:04pm UTC](https://forum.sensor.community/t/causes-and-handling-of-abnormal-values/3102 "2025-03-03T19:04:52Z")
This post is the answer to a similar post as it is not possible to make more than 3 replies to a given post !!! Pending on weather conditions (foggy atmosphere) it may happen that peak measurements are displayed for PM1… --- ## [Compare community sensors with official sensors](https://forum.sensor.community/t/compare-community-sensors-with-official-sensors/4472)
**Author:** [@Deciphair](https://forum.sensor.community/u/Deciphair)\ **Replies:** 1\ **Last updated:** [February 28, 2025, 5:07pm UTC](https://forum.sensor.community/t/compare-community-sensors-with-official-sensors/4472 "2025-02-28T17:07:29Z")
Compare community values with offical values This post is in response to the referenced topic (previous post from another community member) The raised problem to get different values between community sensors and offic… --- ## [How save a map portion every day](https://forum.sensor.community/t/how-save-a-map-portion-every-day/4459)
**Author:** [@yVega](https://forum.sensor.community/u/yVega)\ **Replies:** 4\ **Last updated:** [February 28, 2025, 3:06pm UTC](https://forum.sensor.community/t/how-save-a-map-portion-every-day/4459 "2025-02-28T15:06:24Z")
I would like to have a trend of a specific area with many sensors by saving the image every day at the same time and composing them in rapid succession… a quick movie. It could be a way to quickly pick out the periods t… --- ## [Comparison of data between local towns](https://forum.sensor.community/t/comparison-of-data-between-local-towns/2690)
**Author:** [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)\ **Replies:** 14\ **Last updated:** [February 26, 2025, 11:50am UTC](https://forum.sensor.community/t/comparison-of-data-between-local-towns/2690 "2025-02-26T11:50:59Z")
I was wondering if anyone has looked into how their sensor data compares with other sensors in their area. I have been looking at the PM 2.5 profiles from sensors placed around 30 miles apart and they look quite similar.… --- ## [Sensor.Community Dashboard White Screen Data Not Loading](https://forum.sensor.community/t/sensor-community-dashboard-white-screen-data-not-loading/4322)
**Author:** [@tekidap](https://forum.sensor.community/u/tekidap)\ **Replies:** 0\ **Last updated:** [January 31, 2025, 6:15am UTC](https://forum.sensor.community/t/sensor-community-dashboard-white-screen-data-not-loading/4322 "2025-01-31T06:15:41Z")
Hi everyone, I recently tried accessing the Sensor.Community dashboard, but instead of displaying sensor data, the screen remains completely white with no information loading. The rest of the website seems to work fine… --- ## [What is behind sensors measurements?](https://forum.sensor.community/t/what-is-behind-sensors-measurements/4324)
**Author:** [@Deciphair](https://forum.sensor.community/u/Deciphair)\ **Replies:** 0\ **Last updated:** [January 31, 2025, 9:49am UTC](https://forum.sensor.community/t/what-is-behind-sensors-measurements/4324 "2025-01-31T09:49:56Z")
The instantaneous measurement of the air quality is interesting … but how to interpret the data? The analysis of the measurement data along a given period and over a sufficiently wide area may enable to draw a global vi… --- ## [Cause and handling of abnormal outliers](https://forum.sensor.community/t/cause-and-handling-of-abnormal-outliers/3042)
**Author:** [@JeppesS1423](https://forum.sensor.community/u/JeppesS1423)\ **Replies:** 5\ **Last updated:** [November 1, 2024, 3:14pm UTC](https://forum.sensor.community/t/cause-and-handling-of-abnormal-outliers/3042 "2024-11-01T15:14:35Z")
I am working for a scientific institute and we’re doing an analysis on air quality regarding heart diseases. I have the task of summarizing data within a specific region regarding PM2.5 and PM10 readings from sds011 sens… --- ## [Air quality in Mainz (Germany) at glance](https://forum.sensor.community/t/air-quality-in-mainz-germany-at-glance/3049)
**Author:** [@Deciphair](https://forum.sensor.community/u/Deciphair)\ **Replies:** 0\ **Last updated:** [October 18, 2024, 8:31am UTC](https://forum.sensor.community/t/air-quality-in-mainz-germany-at-glance/3049 "2024-10-18T08:31:42Z")
Decipher, under discussion with the University of Mainz on how to combine air quality investigations with other health studies, run a first assessment of the Mainz environment which is presented here: https://www.decipha… --- ## [Air quality in Paris ..... during Olympic Games](https://forum.sensor.community/t/air-quality-in-paris-during-olympic-games/2967)
**Author:** [@Deciphair](https://forum.sensor.community/u/Deciphair)\ **Replies:** 4\ **Last updated:** [September 18, 2024, 7:17pm UTC](https://forum.sensor.community/t/air-quality-in-paris-during-olympic-games/2967 "2024-09-18T19:17:47Z")
Thanks to the sensors owners and the sensor community support, it is possible to make a valuable analysis of air quality in a given area. It is what Deciphair has been trying to do for a few months displaying results on … --- ## [R-Script or tips to download and use sensor data](https://forum.sensor.community/t/r-script-or-tips-to-download-and-use-sensor-data/426)
**Author:** [@Mathilde\_Bayens](https://forum.sensor.community/u/Mathilde_Bayens)\ **Replies:** 26\ **Last updated:** [October 4, 2023, 9:45am UTC](https://forum.sensor.community/t/r-script-or-tips-to-download-and-use-sensor-data/426 "2023-10-04T09:45:12Z")
Hello everyone, I am looking for tips to download easily sensor data from a specific country (Belgium) and some periods but I am so difficulty to find it on the https://archive.sensor.community/. I don’t understand prop… --- ## [Deciphair.com - A presentation of citizens' sensors processing](https://forum.sensor.community/t/deciphair-com-a-presentation-of-citizens-sensors-processing/2831)
**Author:** [@LeGrenier](https://forum.sensor.community/u/LeGrenier)\ **Replies:** 3\ **Last updated:** [July 20, 2024, 9:45am UTC](https://forum.sensor.community/t/deciphair-com-a-presentation-of-citizens-sensors-processing/2831 "2024-07-20T09:45:36Z")
What can we do with the community sensors regarding air quality awareness? A lot … A few months ago, I tried to know if the community was processing a set of sensors and publishing the results locally. I did not find r… --- ## [Problem in Sensors Coordinations](https://forum.sensor.community/t/problem-in-sensors-coordinations/2863)
**Author:** [@Firouzeh](https://forum.sensor.community/u/Firouzeh)\ **Replies:** 4\ **Last updated:** [June 29, 2024, 4:22pm UTC](https://forum.sensor.community/t/problem-in-sensors-coordinations/2863 "2024-06-29T16:22:16Z")
Hello. Have you had problem with using this data when you are making maps with QGIS? I am trying to use the CSV files through sensors community website for Mainz city, but it seems that they may have incorrect coordina… --- ## [Analysis of the data in different locations](https://forum.sensor.community/t/analysis-of-the-data-in-different-locations/2784)
**Author:** [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)\ **Replies:** 1\ **Last updated:** [June 5, 2024, 4:32pm UTC](https://forum.sensor.community/t/analysis-of-the-data-in-different-locations/2784 "2024-06-05T16:32:23Z")
I was wondering if anyone has done any “big data” analysis of the community sensors from multiple locations? --- ## [SDS011 vs PMS5003 vs PMSA003I](https://forum.sensor.community/t/sds011-vs-pms5003-vs-pmsa003i/2161)
**Author:** [@Drinternationale](https://forum.sensor.community/u/Drinternationale)\ **Replies:** 6\ **Last updated:** [May 30, 2024, 7:30am UTC](https://forum.sensor.community/t/sds011-vs-pms5003-vs-pmsa003i/2161 "2024-05-30T07:30:06Z")
Hi there, I have two devices running one with the older 5003 which is connected to here and another with the newer A003 both sensors are in the same enclosure and give consistent data within 1ug. In the locality there a… --- ## [How Do Sensors Function in Extreme Conditions?](https://forum.sensor.community/t/how-do-sensors-function-in-extreme-conditions/2800)
**Author:** [@hfjensen](https://forum.sensor.community/u/hfjensen)\ **Replies:** 0\ **Last updated:** [May 24, 2024, 6:43am UTC](https://forum.sensor.community/t/how-do-sensors-function-in-extreme-conditions/2800 "2024-05-24T06:43:32Z")
Harsh environment sensors operate effectively in extreme conditions by incorporating specialized materials and designs that resist damage and maintain performance. These sensors often feature protective coatings, rugged … --- ## [Time series data](https://forum.sensor.community/t/time-series-data/2751)
**Author:** [@Almms](https://forum.sensor.community/u/Almms)\ **Replies:** 2\ **Last updated:** [April 22, 2024, 8:15am UTC](https://forum.sensor.community/t/time-series-data/2751 "2024-04-22T08:15:20Z")
Hi there Sorry for the rookie question: how can I access sensor time series data (say, all sensors)? Is this data licensed or can it be used for a public project on data literacy? Many thanks. --- ## [Data being sent to the community but not being registered](https://forum.sensor.community/t/data-being-sent-to-the-community-but-not-being-registered/2656)
**Author:** [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)\ **Replies:** 2\ **Last updated:** [March 14, 2024, 10:36am UTC](https://forum.sensor.community/t/data-being-sent-to-the-community-but-not-being-registered/2656 "2024-03-14T10:36:14Z")
We have received information that some of our sensors are not sending data. However, on investigation we see that the sensors are still running and values are being sent out and recorded on the MADAVI grafana dashboard. … --- ## [Copernicus data](https://forum.sensor.community/t/copernicus-data/1871)
**Author:** [@marwe](https://forum.sensor.community/u/marwe)\ **Replies:** 3\ **Last updated:** [February 18, 2024, 12:52pm UTC](https://forum.sensor.community/t/copernicus-data/1871 "2024-02-18T12:52:20Z")
There is an article about the Copernicus air pollution measurements, analysis and forecast: quick overview of the most common winter air quality issues and the tools available in CAMS to keep track of them CAMS prov… --- ## [WHO global air quality guidelines (AQG) - Update 2021](https://forum.sensor.community/t/who-global-air-quality-guidelines-aqg-update-2021/960)
**Author:** [@mdmd](https://forum.sensor.community/u/mdmd)\ **Replies:** 2\ **Last updated:** [April 17, 2023, 8:45pm UTC](https://forum.sensor.community/t/who-global-air-quality-guidelines-aqg-update-2021/960 "2023-04-17T20:45:06Z")
The World Health Organization (WHO) published updated air quality guidelines (AQG) on 22 September 2021. WHO global air quality guidelines: particulate matter (‎PM2.5 and PM10)‎, ozone, nitrogen dioxide, sulfur dioxide … --- ## [Using R to download data from Sensor Map](https://forum.sensor.community/t/using-r-to-download-data-from-sensor-map/2565)
**Author:** [@Niamh](https://forum.sensor.community/u/Niamh)\ **Replies:** 1\ **Last updated:** [January 30, 2024, 12:49am UTC](https://forum.sensor.community/t/using-r-to-download-data-from-sensor-map/2565 "2024-01-30T00:49:05Z")
Hi all, I am trying to use RStudio to download all the data from 38 sensors in a particular region. Has anybody got any experience with this? I have looked online and tried a few codes but I cannot get any of them to wor… --- ## [Usage of data for national interest](https://forum.sensor.community/t/usage-of-data-for-national-interest/2221)
**Author:** [@sci12345](https://forum.sensor.community/u/sci12345)\ **Replies:** 6\ **Last updated:** [November 28, 2023, 10:59pm UTC](https://forum.sensor.community/t/usage-of-data-for-national-interest/2221 "2023-11-28T22:59:09Z")
Is the data delivered to national or regional authorities for example the UBA (Umweltbundesamt). Is it in planning? Is an app for data visualization in planning? [Next page](https://forum.sensor.community/c/scientific-discourse/8.md?page=1)