ANC	The average annual number of all cancers in employees with pneumoconiosis
ANL	The average annual number of LBC in employees with pneumoconiosis
ANP	The average annual number of pneumoconiosis (1996–2016) in monitored regions
ARL	The average annual risk of LBC from occupational exposures (expressed for whole population in the region)
AT	Average lifetime
B[a]P	Benzo[a]pyrene
cavg	Average air pollution concentration
CF	Conversion factor
CIR	Crude incidence rate
CR	Czech Republic
ED	Exposure duration
IA	Industrial area
IARC	International Agency for Research on Cancer
ICRP	International Commission on Radiological Protection
LBC	Cancer of respiratory tract (trachea, bronchus, and lung cancer)
LC	Lifetime average exposure concentration
LC	Lifetime average exposure concentration of benzo[a]pyrene
LCR	Lifetime cancer risk
LD	Lifetime cumulative effective dose of radon
LR1	Lifetime risk of LBC from exposure to radon
LR2	Lifetime risk of LBC from exposures to benzo[a]pyrene
LR3	Lifetime risk of LBC from occupational exposure
LR4	Lifetime risk of LBC from others risk factors
LRo	Lifetime risk of LBC from all risk factors for a 75-year-old (i.e., the cumulative incidence rate)
LRP1	Lifetime risk proportion from exposure to radon
LRP2	Lifetime risk proportion from exposure to benzo[a]pyrene
LRP3	Lifetime risk proportion from occupational exposure
LRP4	Lifetime risk proportion from exposure to other risk factors
NA	Non-industrial area
OF	Occupancy factor
PAF	Attributable fraction for the population
PCP	The average proportion of all cancers in employees with pneumoconiosis
PLC	The average proportion of LBC from all cancers in employees with pneumoconiosis
PM	Particulate matter
POP	The average population in monitored regions in years 1996–2016
RCF	Radon dose conversion factor
Rn	Radon
SIR	Age-standardized incidence rate
UCR	Unit cancer risk
US EPA	United States Environmental Protection Agency
VAR	Constant volume activity of radon in the observe period
WHO	World Health Organization