{"Chemical":"b","Conc":1}
{"Chemical":"b","Conc":2.6}
{"Chemical":"b","Conc":5.1}
{"Chemical":"b","Conc":8.4}
{"Chemical":"b","Conc":13.8}
{"Chemical":"b","Conc":15.2}
{"Chemical":"b","Conc":20.7}
{"Chemical":"b","Conc":31.8}
{"Chemical":"b","Conc":114}
{"Chemical":"b","Conc":125}