ENGINEERS DESIGN NEW LEAD DETECTOR FOR WATER

The video highlights the issue of lead contamination in water, emphasizing its dangers, especially to children and pregnant women. Dr. Jin Hong Chen and his team at the University of Wisconsin, Milwaukee, have developed a graphene-based sensor to detect lead and other heavy metals in water. This device aims to provide real-time monitoring and is designed to be affordable and easy to use for consumers. The technology can be integrated into water heaters and purifiers, ensuring continuous monitoring and safety. It also has potential applications in detecting other contaminants and in biomedical fields.

What is the primary health concern associated with lead in drinking water?

• It causes digestive problems.

• It results in respiratory issues.

• It can lead to brain damage.

• It causes skin irritation.

What is the main component used in Dr. Chen's sensor to detect lead?

• Copper

• Silicon

• Plastic

• Graphene

How does the graphene-based sensor detect contaminants?

• By changing color

• By altering its conductivity

• By emitting a sound

• By vibrating

What is one of the goals for integrating the sensors into water heaters and purifiers?

• To reduce water flow

• To increase water temperature

• To enhance water taste

• To enable continuous monitoring

Besides lead, what other contaminants can the technology potentially detect?

• Heavy metals and bacteria

• Only pesticides

• Only viruses

• Only chlorine