Fig 1.
Map showing the location of groundwater samples (pre- and post-monsoon) in coastal areas Alappuzha coastal areas in Kerala state of India.
Fig 2.
Geology ofAlappuzha coastal areas in Kerala state of India indicating the presence of both crystalline and sedi.mentary formations.
Table 1.
Values of radon inhalation andingestion, total effective dose and the dose contributions for stomach and lungs in pre-monsoon groundwater samples from 53 locations along the coast of Kerala state in India.
Table 2.
Values of radon inhalation andingestion, total effective dose and the dose contributions for stomach and lungs in post-monsoon groundwater samples from 53 locations along the coast of Kerala state in India.
Fig 3.
Spatial distribution of radon in groundwater of pre-monsoon (dry season) and post-monsoon (wet season) in the Alappuzha district of Kerala state in India.
Fig 4.
Piper diagram illustrating the hydrochemical facies of groundwater samples from the Alappuzha coastal aquifer.
Fig 5.
Total effective dose in stomach and lungs from the ingestion of pre-monsoon (dry season) groundwater of 53 wells in the Alappuzha district of Kerala state in India.
Fig 6.
Total effective dose in stomach and lungs from the ingestion of post-monsoon (wet season) groundwater of 53 wells in the Alappuzha district of Kerala state in India.
Table 3.
Comparison of radon concentration in present study with reported values from other regions using similar and different methodologies.
Fig 7.
Spatial representation of different zones of Radon.