Assesment and evaluation of excess lifetime cancer risk for  Occupants of university of Uyo permanent campus, Nigeria

This paper presents the results of ambient radioactive radiation, radiation health hazard indices and excess lifetime cancer risk estimation within University of Uyo campus, Use Offot, Uyo, Niger Delta region of Nigeria. Mean annual outdoor and indoor equivalent doses of 0.284mSv/yr. and 0.854mSv/yr. respectively were recorded, being less than 1mSv/yr. maximum recommended limit for general public. Mean annual outdoor and indoor effective doses of 0.174mSv/yr. and 0.645mSv/yr. respectively with a total of 0.819mSv/yr. were computed. The mean outdoor and indoor ELCR values of 0.61x10-3 and 2.26 x 10-3 respectively, with a mean total of 2.87 x 10-3 were also computed. The results though higher than the world’s average, are comparable with those of some other locations within the Niger Delta region.

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Aflatoxin B1Contamination of Some Edible Grains Marketed in Nigeria

E-Journal of Chemistry ◽

10.1155/2009/708160 ◽

2009 ◽

Vol 6 (2) ◽

pp. 308-314 ◽

Cited By ~ 11

Author(s):

S. A. Odoemelam ◽

C. I. Osu

Keyword(s):

Niger Delta ◽

Health Hazard ◽

Human Beings ◽

Delta Region ◽

Food Grains ◽

Niger Delta Region ◽

Carcinogenic Property ◽

Aflatoxin B

This paper presents an assessment of the aflatoxin B1contamination of some food grains (wheat, millet, Guinea corn, breadfruit and groundnut) from major markets in the Niger Delta region of Nigeria. The concentrations of aflatoxin B1obtained in the ranges from 17.01-20.53 µg kg–1for wheat, 34.00– 40.30 µg kg–1for millet, 27.22-36.13 µg kg–1for guinea corn, 40.06-48.59 µg kg–1for breadfruit and 74.03-82.12 µg kg–1for groundnut. Aflatoxin B1was detected in all the samples. There were significant differences (p<0.01) in the levels of aflatoxin B1determined in all the samples and the toxin contamination was not restricted to any particular section of the region. The presence of aflatoxins in grains constitutes a serious health hazard to both human beings and animals because of their toxic and carcinogenic property.

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Total Excess Lifetime Cancer Risk Estimation from Enhanced Heavy Metals Concentrations Resulting from Tailings in Katsina Steel Rolling Mill, Nigeria

Journal of Material Science & Engineering ◽

10.4172/2169-0022.1000338 ◽

2017 ◽

Vol 06 (03) ◽

Cited By ~ 2

Author(s):

Bello S ◽

Muhammad BG ◽

Bature B

Keyword(s):

Heavy Metals ◽

Cancer Risk ◽

Rolling Mill ◽

Risk Estimation ◽

Lifetime Cancer Risk ◽

Steel Rolling ◽

Excess Lifetime Cancer Risk

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RADON, THORON AND THEIR PROGENY DISTRIBUTION AND ESTIMATION OF ANNUAL EFFECTIVE DOSE AND EXCESS LIFETIME CANCER RISK IN PANATHADY, KASARAGOD DISTRICT, KERALA

Radiation Protection Dosimetry ◽

10.1093/rpd/ncz255 ◽

2019 ◽

Vol 188 (1) ◽

pp. 38-46

Author(s):

K Nadira Mahamood ◽

V Prakash

Keyword(s):

Cancer Risk ◽

Indoor Radon ◽

Radiological Protection ◽

Lifetime Cancer Risk ◽

Major Health ◽

Excess Lifetime Cancer Risk ◽

Activity Concentrations ◽

Single Entry ◽

Effective Doses ◽

Recommended Level

Abstract Radon and thoron are natural radioactive gases that tend to accumulate in the indoor environment and one of their major health implications is the ability to cause lung cancer. Present study comprises the quantification of radon and thoron activity concentrations and measurement of gamma exposure rates in different types of dwellings from the endosulfan-affected area, Panathady, Kasaragod district, Kerala. It is observed that, residents of this area were more prone to various diseases and health problems including cancer. The LR-115 type II solid state nuclear track detectors with single entry pin-hole based dosemeters have been used for the measurement of 222Radon and 220Rn activity concentrations. The assessment of radiological parameters such as annual effective doses and excess lifetime cancer risk has also been done in order to understand the dose level and the associated risk. The estimated values have been compared with the limit recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and International Commission on Radiological Protection (ICRP). The average indoor radon and thoron activity concentrations observed in these dwellings were 134 ± 30 and 111 ± 28 Bq m−3, respectively. The estimated activity concentrations, effective doses, etc. are found to be within the recommended level by the UNSCEAR or ICRP.

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