Smart smartphone sensor detects pollution level of any water

Astronomers at the University of Leiden in the Netherlands are developing a companion device for a smartphone with which users can determine the level of water pollution.

This was preceded by research by the same team of astronomers and toxicologists in 2013, which resulted in a smart device for smartphones iSPEX (Spectropolarimeter for Planetary Exploration), which measures the level of air pollution. Thousands of residents of the Netherlands, Greece, Great Britain and other European countries took part in air monitoring, which resulted in a detailed map of dust particles over Europe.

The technology behind determining water quality is borrowed from astronomers. With its help, they determine the presence of oxygen on other planets. With its use, there is no need to send samples of water, air or products to the laboratory for expensive research.

Water research has its own characteristics. So several factors influence the color of the water. For example, a strong wind raises turbidity from the bottom, and clouds covering the sun make the water darker. Research participants are encouraged to photograph the sky above the water for more accurate results.

The technology will be tested for at least two more years. Scientists hope to be able to combine advanced astronomical technology with environmental science. The result can be a simple device for measuring the level of water pollution.