These data files are periodic (15 minutes) measurements of the concentration of nitrogen dioxide and particulate matter in the air for the monitoring station at Wharf Street, Sowerby Bridge. The units are measured in micrograms per cubic metre ( PM2.5 and PM10 are fine particulate matter). Each file shows data for a whole year, the file uses the name R4 for the Air Quality Station 4. The data has been checked and calculations made on...

These data files are periodic (15 minutes) measurements of the concentration of nitrogen dioxide and particulate matter in the air for the monitoring station at Market Street, Hebden Bridge. The units are measured in micrograms per cubic metre (PM2.5 and PM10 are fine particulate matter). Each file shows data for a whole year, the file uses the name R3 for the Air Quality Station 3. The data has been checked and calculations made on ...

These data files are periodic (15 minutes) measurements of the concentration of nitrogen dioxide and particulate matter in the air for the monitoring station at Salterhebble, Halifax. The units are measured in micrograms per cubic metre (PM2.5 and PM10 are fine particulate matter). Each file shows data for a whole year, the file uses the name R2 for the Air Quality Station 2. The data has been checked and calculations made on them to pr...

The Calder valley in Calderdale has regularly suffered from flooding, due to the topography of the area. The last severe flooding occurred on Boxing Day 2015. This dataset was initially created to provide data as part of the clean up operation. It now has details of the work that continues to be carried out to recover from the flood. More importantly, to help prevent the devastation happen again to such an extent, including innovations ...