The hydrogeochemical characteristics of groundwater are an important element in the study spatial and temporal variation resources, which is crucial to water resources utilization, ecological environmental protection, human development. Water samples were collected at eight observation Nandong Karst System (NKWS) sites each month 2019, main ions isotopes examined. hydrogeochemistry its differen...

Large amounts of the deicing chemicals (DIC) propylene glycol (PG) and formate are spread for removal of snow and ice on the aircrafts and airfields every winter. A considerable amount of these chemicals are carried into surrounding areas, where they mix with snow and infiltrate in the soil during snowmelt. Even though DIC are easily degradable, the high mobility and the high biological oxygen ...