A study on the impact of phosphate fertilizers on the radioactivity profile of cultivated soils in Srirangam (Tamil Nadu, India)

Hameed, P. Shahul; Pillai, G. Sankaran; Mathiyarasu, R.

doi:10.1016/j.jrras.2014.08.011

Cited by 25 publications

(14 citation statements)

References 22 publications

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“…Thus the use of chemical fertilizers in the fields to enhance crop yield promotes the radium equivalent activity, and therefore the exposure of the farmers working in these fields. The obtained values of radium equivalent activity in soil samples are within the recommended limits of 370 Bq/kg [20,21,29].…”

Section: Radiological Hazard Assessmentmentioning

confidence: 57%

“…The calculated external hazard index for the soil samples in which fertilizers were used are higher than the virgin soil samples only in Yaremja (in both fields greenhouses and uncovered cultivate), because in these fields different types of chemical fertilizers (such as potassium sulfate (K), urea ammonium super phosphate (NP), and nitro phosphate potash mixed (NPK) fertilizer) were used, while there is no change observed in values of external hazard index for both virgin and agricultural soil samples in Ankawa, Binaslawa, and Bardarash, where chemical fertilizers urea, diammonium phosphate, and urea ammonium phosphate were used in these fields to enhance the crop yield. The external hazard index for the soil samples in the studied area is lower than the safety limit of 1 mSv/year as recommended by the OECD [20,29].…”

Section: Radiological Hazard Assessmentmentioning

confidence: 97%

“…H ex was determined by assuming that 370 Bq/kg of 226 Ra, 259 Bq/kg of 232 Th, and 4810 Bq/kg of 40 K are produced at the same gamma dose rate. In order to evaluate this index, we can use the following relationship [5,25]:…”

Section: Annual Effective Dosementioning

confidence: 99%

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Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Azeez¹,

Mansour²,

Ahmad³

2020

Pol. J. Environ. Stud.

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In this study, the effect of the use of chemical fertilizers on natural radioactivity levels in agricultural soil was investigated. For this purpose, virgin and agricultural (fertilized) soils were collected from Erbil city, the capital of the Iraqi Kurdistan Region. Gamma-ray spectrometry was applied using a high-purity germanium (HPGe) detector to determine the activity concentrations of 226 Ra, 232 Th, and 40 K in soil samples. The results showed that the range of activity concentrations for 226 Ra, 232 Th, and 40 K in virgin soils are (10.6-16.2) Bq/kg, (8.8-10.7) Bq/kg, and (241.8-340.9) Bq/kg, respectively, while the range of activity concentrations for 226 Ra, 232 Th, and 40 K in agricultural soils are (11.9-18.2) Bq/kg, (8.8-12.4) Bq/kg, and (247.7-338.3) Bq/kg, respectively. The obtained values of activity concentration show that the application of chemical fertilizers elevated the natural radioactivity level of the soil. The radiological hazard parameters were also calculated in both the virgin and agricultural soil samples and compared with the international dose safety limit in the soil.

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Section: Radiological Hazard Assessmentmentioning

confidence: 57%

Section: Radiological Hazard Assessmentmentioning

confidence: 97%

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Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Azeez¹,

Mansour²,

Ahmad³

2020

Pol. J. Environ. Stud.

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“…This may be due to, in addition that described above, some agricultural lands that in the past years were located to the south of the city. These agricultural activities involved the use of fertilizers that possibly had high potassium concentrations [ 20 , 21 ].…”

Section: Resultsmentioning

confidence: 99%

Lifetime Effective Dose Assessment Based on Background Outdoor Gamma Exposure in Chihuahua City, Mexico

Luevano-Gurrola

Perez-Tapia

Pinedo-Alvarez

et al. 2015

IJERPH

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Determining ionizing radiation in a geographic area serves to assess its effects on a population’s health. The aim of this study was to evaluate the spatial distribution of the background environmental outdoor gamma dose rates in Chihuahua City. This study also estimated the annual effective dose and the lifetime cancer risks of the population of this city. To determine the outdoor gamma dose rate in air, the annual effective dose and the lifetime cancer risk, 48 sampling points were randomly selected in Chihuahua City. Outdoor gamma dose rate measurements were carried out by using a Geiger-Müller counter. Outdoor gamma dose rates ranged from 113 to 310 nGy·h−1. At the same sites, 48 soil samples were taken to obtain the activity concentrations of 226Ra, 232Th and 40K and to calculate their terrestrial gamma dose rates. Radioisotope activity concentrations were determined by gamma spectrometry. Calculated gamma dose rates ranged from 56 to 193 nGy·h−1. Results indicated that the lifetime effective dose of the inhabitants of Chihuahua City is on average 19.8 mSv, resulting in a lifetime cancer risk of 0.001. In addition, the mean of the activity concentrations in soil were 52, 73 and 1097 Bq·kg−1, for 226Ra, 232Th and 40K, respectively. From the analysis, the spatial distribution of 232Th, 226Ra and 40K is to the north, to the north-center and to the south of city, respectively. In conclusion, the natural background gamma dose received by the inhabitants of Chihuahua City is high and mainly due to the geological characteristics of the zone. From the radiological point of view, this kind of study allows us to identify the importance of manmade environments, which are often highly variable and difficult to characterize.

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“…The activity of 238 U is higher in phosphate-rich fertilizers like TSP and SSP. The application of phosphate fertilizer significantly increases the radioactivity level of cultivated soil as compared to soil from barren land [113], [114].…”

Section: IImentioning

confidence: 99%

Utilization of Apatite Ores

Ptáček¹

2016

Apatites and Their Synthetic Analogues - Synthesis, Structure, Properties and Applications

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Phosphate rock is an important mineral commodity used in the chemical industry and production of food. The first section of ninth chapter of this book introduces utilization of apatite ores for manufacturing of phosphorus. The second part deals with production of phosphoric acid via wet and thermal process and utilization of byproducts such as phosphogypsum, phosphorous slag and ferrophosphorus. The last section of this chapter describes the methods for production of fertilizers, such as supephosphates, Thomas slag, ammonium phosphates, thermophosphates, etc., and the chapter ends with environmental demand of phosphate fertilizers.

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A study on the impact of phosphate fertilizers on the radioactivity profile of cultivated soils in Srirangam (Tamil Nadu, India)

Cited by 25 publications

References 22 publications

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Effect of Using Chemical Fertilizers on Natural Radioactivity Levels in Agricultural Soil in the Iraqi Kurdistan Region

Lifetime Effective Dose Assessment Based on Background Outdoor Gamma Exposure in Chihuahua City, Mexico

Utilization of Apatite Ores

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