Graphene Flagship partners at the National Physical Laboratory, UK, and Chalmers University of Technology, Sweden, alongside colleagues at the Advanced Institute of Technology, UK, Royal Holloway University, UK, and Linköping University, Sweden, have created a low-cost, low-energy consuming NO2 sensor that measures NO2 levels in real-time – and it could help to visualize pollution in urban areas. NO2 gas is produced by burning fossil fuels, and it can cause airway inflammation, leading to breat...