vania and her team of scientists they're here to study water pollution the toxic substances flushed into the sea primarily down the pan river hong kong lies near its mouth. was fired through the pearl river is a special area almost 100000000 people live in the region and we want to analyze their impact on the water. it's comparable to the baltic sea region which also happens to be home to $100000000.00. euro nation. the aim is to identify the pollutants in the south china sea determine that quantities and find out what impact they're having. for 4 weeks the team will be collecting water of more than 70 spots using this probe at depths of up to 3000 meters. looking for antibiotics pesticides toxic carbon and chlorine compounds micro plastics hormones u.v. filters found in sunscreen products and many other pollutants. the probe is fitted with a range of measuring instruments and $24.00 large containers that take water samples at various depths for later analysis. scooping water out of the ocean and processing the samples is a complex procedure involving plenty of modern technology. tapping