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Citizen air-quality network
The group wanted the map to be (17) .......... even to people with little scientific knowledge. Every sensor is (18) .......... checked whenever it sends an unusual value. The organisers avoid (19) .......... claims about what a single reading can show. The site includes a (20) .......... guide to common sources of pollution. The volunteers work with (21) .......... who can explain the data in schools. A reading may be (22) .......... if the sensor has not been cleaned recently. The network has encouraged more (23) .......... about local environmental decisions. Its main strength is the (24) .......... with which people can compare nearby streets. The project’s guidance encourages users to compare several readings before drawing a conclusion. It also explains why a sensor placed near a road, a wall or a delivery point may show a different pattern from one only a short distance away. The network also publishes simple maintenance advice so that volunteers can recognise when a sensor needs attention. This reduces the risk that an avoidable technical problem will be mistaken for a change in local conditions. The guidance is reviewed whenever users report a recurring difficulty with a device.
Citizen air-quality network
The group wanted the map to be (17) .......... even to people with little scientific knowledge. Every sensor is (18) .......... checked whenever it sends an unusual value. The organisers avoid (19) .......... claims about what a single reading can show. The site includes a (20) .......... guide to common sources of pollution. The volunteers work with (21) .......... who can explain the data in schools. A reading may be (22) .......... if the sensor has not been cleaned recently. The network has encouraged more (23) .......... about local environmental decisions. Its main strength is the (24) .......... with which people can compare nearby streets. The project’s guidance encourages users to compare several readings before drawing a conclusion. It also explains why a sensor placed near a road, a wall or a delivery point may show a different pattern from one only a short distance away. The network also publishes simple maintenance advice so that volunteers can recognise when a sensor needs attention. This reduces the risk that an avoidable technical problem will be mistaken for a change in local conditions. The guidance is reviewed whenever users report a recurring difficulty with a device.