Indoor radon levels in urban areas of Hyderabad, Andhra Pradesh, India were measured by a time integrated method using solid state nuclear track detector-based dosemeters. Results show that the radon levels varied widely in the area ranging from 17 to 311 Bq m(-3) with a geometric mean value of 52.8 Bq m(-3) (GSD=1.7). Cumulative frequency distribution of radon levels gave a best fit on a log-normal scale. Measurements were carried out for 1 y, segregating the measurement periods in accordance with seasonal changes. Soil samples from the region were also analysed for natural radionuclides to study its effect, if any, on indoor radon levels. Dwellings categorised based on construction types showed that the average radon levels in the order tiles (TLE)>asbestos (ASB)>concrete (RCC) for the roof structures. The estimated radon levels in the study area are relatively higher than the country’s average value of 23 Bq m(-3) and global average value of 30 Bq m(-3). Results of the indoor radon ( Rn) levels in dwellings around Pauri and Uttarkashi areas are presented. Small strips of LR-115 type II films exposed in the bare mode are used for the measurements on a time integrated quarterly cycle covering all the four seasons of the year. Simultaneous measurements of Rn levels in spring water and soil around these regions have also been made. Indoor Rn (average) levels in the Uttarkashi and Pauri districts varied from 76.5 to 136.6 Bq/m and from 39.2 to 168.2 Bq/m , respectively. In the spring water, Rn levels varied from 1.0 to 113.3 Bq/l and from 4.0 to 43.0 Bq/l in Uttarkashi and Pauri region, respectively. Measured soil gas Rn levels vary from 0.2 to 46.5 kBq/m and from 1.2 to 9.8 kBq/m in the Uttarkashi and Pauri region, respectively. Some preliminary results from a radon survey carried out in mud houses in Tehri Garhwal are reported. The radon values recorded were found to be higher than the recommended value under normal ventilation conditions. The estimated total life time risk and attributed loss of life expectancy are found to be 0.58 per Bq/m 3 and 15 years, respectively. The abnormal values recorded in mud houses in Tehri Garhwal are of sufficient importance for initiating further investigations in this area.


The number of cancer cases in the country is projected to go up from 14.6 lakh in 2022 to 15.7 lakh in 2025, according to the Indian Council of Medical Research-National Cancer Registry Programme (ICMR-NCRP), the government informed Parliament on March 14. The lung cancer cases have gone up from 98,278 in 2020 to 1,03,371 in 2022, registering a jump of 5.2 per cent, the government said in Parliament, quoting the Indian Council of Medical Research — National Cancer Registry Programme (ICMR-NCRP).

Cancer incidence estimates for 2022 & projection for 2025: Result from National Cancer Registry Programme, India
The estimated number of incident cases of cancer in India for the year 2022 was found to be 14,61,427. In India, one in seven people are likely to develop cancer in his/her lifetime. Lung and breast cancers were the leading sites of cancer in males and females, respectively. Among the childhood (0-14 yr) cancers, lymphoid leukaemia (boys: 29.2% and girls: 24.2%) was the leading site. The incidence of cancer cases is estimated to increase by 12.8 per cent in 2025 as compared to 2020. In Delhi NCR, breast & kung cancer in women and lung cancer in men are the most common types of cancers being recorded, a recent report by ICMR (Indian Council of Medical Research) stated.
Even after serious strides towards cancer treatment and rising awareness levels all over the world, the number of cancer cases is increasing in Uttarakhand. Between 2014 and 2016, these cases increased by 10.15% in the state, which was more than the national figure of 9.2%.According to the data of the Indian Council of Medical Research (ICMR), there was a total of 11,240 cancer patients in Uttarakhand in 2014. The number increased to 11,796 in 2015, and by 2016, the figure was 12,381.Besides this, the mortality of cancer patients also increased by 10.19% between 2014 and 2016 in Uttarakhand. This, too, was higher than the national figure of 9.3%.Cases of lung cancer among males increased from 624 in 2014 to 701 in 2016, a rise of 12.3%. The national average for this period was 11.2%.Though North and North-East India shows the highest vulnerabilities, the ICMR-NCDIR Report, 2021 of cancer and related factors for the Karnataka state showed cumulative risk of developing cancer of any site in 0-74 years of age group was 1 in 7 for males and 1 in 6 for females, he said.

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