English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Distribution of natural and anthropogenic radionuclides ( 226 Ra,  232 Th,  137 Cs and  40 K) was determined in 32 samples from Ghizer, an Eastern Hindukush district at an altitude of 2286 m in Pakistan using high resolution gamma-ray spectrometry. Mineralogical analysis by X-ray diffractometry identified quartz, calcite, albite and anorthite as major phases whereas actinolite, chlorite serpentine and kaolinite as minor phases. The activity concentrations for  226 Ra,  232 Th,  137 Cs and  40 K varied from 25.2 ± 1.7 to 145.3 ± 10.1 Bq kg −1 , 24.9 ± 1.1 to 197 ± 9 Bq kg −1 , 2.03 ± 0.21 to 16.7 ± 1.1 and 252 ± 6 to 1433 ± 35 Bq kg −1 , respectively. The samples yielded average radium equivalent activity as 178.4 ± 23.3 Bq kg −1 . The majority of the samples revealed external hazard index and representative level index less than one. The average air absorbed dose rate was 91.2 ± 13.6 nGy h −1  corresponding to the annual effective dose rate 111.8 ± 17.4 μSv y −1 . These values were higher than the world averages for air absorbed dose rate and outdoor annual effective dose rate. Principal component analysis was applied to obtain distribution pattern within the samples and among the radionuclides.

Soil mineral analysis and environmental radioactivity in Ghizer, Eastern Hindukush, Pakistan