Karaburan

Project Karaburan
Monitoring water quality
Status	Initializing
Contact	bertrik
Last Update	2024-04-03

Introduction

Topics:

• air quality sensors
  • ammonia
  • NOx
• water chemical analysis
  • nitrates
  • ammonia
  • dissolved oxygen
  • sulfide/sulfate
  • phosphates?
  • salinity (chlorides?)
• water physical analysis
  • temperature
  • clarity/turbidity -> investigate standard ways of measuring/expressing this
  • conductivity/total dissolved solids
  • water properties by light reflection, hyperspectral/polarity
• boat control
  • trajectory -> steering
• camera control
• post-processing
  • data presentation
    • video/photo stitching
    • time lapse view
    • map view of properties
• use cases
  • verify with domain experts, how to engage?
  • slootview, under/above water
  • minimum viable prototype
  • high-res measurement by location, by time
• materials
  • boat selection
  • processing platform selection
  • communication platform selection

Air quality sensors

Nitrogen compounds in air

According to https://www.rivm.nl/stikstof/monitoren-advies-onderzoek/overzicht-stikstofmetingen/metingen-stikstof-in-de-lucht average (typical?) values of

• Ammonia (NH3): 6.7 ug/m3 (9.6 ppb)
• NOx: 27.3 ug/m3
• NO2: 18.6 ug/m3 (9.9 ppb)

(ppb-conversion using https://www.breeze-technologies.de/blog/air-pollution-how-to-convert-between-mgm3-%C2%B5gm3-ppm-ppb/ )

RIVM report on inexpensive nitrogen-in-air sensors: https://www.samenmeten.nl/sensoren-voor-no2 Conclusion: most sensors are not sensitive enough to be used in typical outdoor conditions, with perhaps one exception: alphasense NO2-B43F