Atmospheric dispersion assessment of radioactive materials during severe accident conditions for Bushehr nuclear power plant using HYSPLIT code

Pirouzmand, Ahmad; Kowsar, Zahra; Dehghani, Peyman

doi:10.1016/j.pnucene.2018.05.015

Cited by 27 publications

(8 citation statements)

References 11 publications

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“…The GDAS0P5 archive dataset has 0.5°horizontal resolution and 55 vertical layers (Lin Su et al 2015). Backward trajectories can demonstrate the sources of the air masses, while forward trajectories can calculate the future route of the air mass from a known source (Pirouzmand et al 2018). In this study, 36-and 72-hr-long forward trajectories were run four times every day (00UTC, 06UTC, 12UTC, and 18UTC).…”

Section: Trajectory Modelmentioning

confidence: 99%

Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

et al. 2019

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Radiocarbon (14C) analysis was performed on Japanese cedar (Cryptomeria japonica) tree rings from Koriyama, Fukushima prefecture. Our primary aim was to detect any 14C release from the Fukushima Dai-ichi nuclear power plant accident on 11 March 2011. We also completed and assessed the 14C level in Japanese tree rings for the period of 1990–2014 because of the lack of environmental 14C results in the Japanese island that time. For this reason, we used a trajectory model to investigate the air mass forward and backward trajectories at the area of the power plant and sampling site. The modeling data show that the air masses mainly moved to the Pacific Ocean, both during March 2011 and during the growing season (March–September). During the period 1990–2014 there was no significant 14C excess in any of the samples, but there was a detectable Suess effect in almost every tree ring sample. The average fossil contribution was 0.83 ± 0.01% and the calculated anthropogenic component ratio, the 14C excess varied between +0.5 and –1.6%. The Δ14C value decreased from 150.0‰ to 9.5‰ from 1990–2014, which follows the decline of the 14C bomb peak, in addition to any detectable Suess effect.

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Section: Trajectory Modelmentioning

confidence: 99%

Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

et al. 2019

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“…This approach enables accurate and efficient prediction of air quality and pollutant dispersion. The Lagrangian modelling technique is utilized to determine air concentrations by incorporating the contributions of individual pollutant puffs that are transported across the grid cell in accordance with their trajectory [11].…”

Section: Methodsmentioning

confidence: 99%

Simulation of Hypothetical Radiological Accident at Potential Nuclear Power Plant Sites in Malaysia

Jamaludin,

Karim,

Kechik

et al. 2023

J. Phys.: Conf. Ser.

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After any nuclear incident, the main concern for human well-being is the extent of radiation released beyond the site. This study simulated a similar scenario on three potential nuclear power plant sites in Malaysia, using the Fukushima Daiichi Nuclear Power Plant incident as a reference. The computer model Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) was used to simulate and track the movement of air parcels and the dispersion of radioactive emissions. HYSPLIT analyzed the dispersion profile of radioactive materials, revealing that in S1, S2, and S3, the maximum ground dose was 7.9 mSv, 28.0 mSv, and 7.6 mSv, respectively. The maximum activity deposited on the ground was 62 MBq, 210 MBq, and 14 MBq for S1, S2, and S3, respectively. The analysis of ground deposition indicated that S1 covered an estimated area of 1500 km2, S2 covered 3025 km2, and S3 had the largest coverage of approximately 4537 km2. Overall, this study demonstrates that the hypothetical accident would contaminate the vicinity of the three potential nuclear power plant (NPP) sites.

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“…This allows for the classification of objects into either the same cluster or different clusters. Unlike classification, clustering does not require model training [75,76].…”

Section: Hysplit Clustering Analysismentioning

confidence: 99%

A Hybrid Modeling Approach for Estimating the Exposure to Organophosphate Pesticide Drift in Sangamon County, Illinois

El Afandi,

Ismael,

Fall

2024

Sustainability

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According to estimates from the World Health Organization (WHO), organophosphate pesticides are responsible for approximately 300,000 deaths worldwide. In the United States, documented cases of organophosphate pesticide exposure number around 8000, with a small number of fatalities occurring annually. The health risks associated with these pesticides affect those living in agricultural areas, as well as farmers and pesticide applicators. Despite the intervention of government agencies in Illinois to regulate pesticide application, studies have shown that these pesticides remain present in the soil, crops, water, and air. Urban–agricultural interface communities around Sangamon County exhibit significant levels of air pollution due to pesticide spray drift, although the lack of reliable pesticide data poses a challenge in estimating the extent of the problem. Therefore, developing novel strategies to reduce the impact of pesticides on environmental health is a critical and effective research area. Currently, new, dependable models and methods are being developed to calculate spray drift and mitigate its effects. The primary objective of this study was to investigate whether and to what extent organophosphate pesticide spray drifts into urban–agricultural interface communities in Sangamon County, Illinois. To achieve this, the current study employed an integrated approach that combined the capabilities of the HYSPLIT and AgDRIFT models to evaluate organophosphate pesticide spray drifting at both the field- and county-level scales. In the absence of precise pesticide quantity data, this novel approach allowed for field simulations within identified exposure drift zones. The preliminary findings indicate that all residential areas close to agricultural areas are at risk of pesticide drift, as buffer zones do not exceed 25 m. Furthermore, of the 34 water bodies (rivers, lakes, streams, and drains) in the 30,200-acre study region, 12 are within the high-drift zone for pesticide spray drift from corn and soybean fields. Finally, the potential for organophosphate pesticide drift was present in approximately 106 buildings, covering an area of 10,300 km2.

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Atmospheric dispersion assessment of radioactive materials during severe accident conditions for Bushehr nuclear power plant using HYSPLIT code

Cited by 27 publications

References 11 publications

Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

Simulation of Hypothetical Radiological Accident at Potential Nuclear Power Plant Sites in Malaysia

A Hybrid Modeling Approach for Estimating the Exposure to Organophosphate Pesticide Drift in Sangamon County, Illinois

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Atmospheric dispersion assessment of radioactive materials during severe accident conditions for Bushehr nuclear power plant using HYSPLIT code

Cited by 27 publications

References 11 publications

Variation of 14C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

Variation of 14C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

Simulation of Hypothetical Radiological Accident at Potential Nuclear Power Plant Sites in Malaysia

A Hybrid Modeling Approach for Estimating the Exposure to Organophosphate Pesticide Drift in Sangamon County, Illinois

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Product

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Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident

Variation of ¹⁴C in Japanese Tree Rings Related to the Fukushima Nuclear Accident