Environmental Epidemiology

Staff

Prof. TSUDA Toshihide
E-mail：tsudatos＠（@md.okayama-u.ac.jp）
Environmental Epidemiology

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Research Topics

Quantitative assessment of the effects of environmental pollution on the humans

Assessment of the effects of chemical environmental exposure on the humans

The Minamata disease case was a case of food poisoning, the causative food was fish and shellfish from Minamata Bay, and the etiological agent was unknown in 1956. However, the Minamata disease case was subsequently not investigated as required by the Food Sanitation Law, and its diagnosis differed markedly from that of ordinary poisoning (food poisoning). We are clarifying this point.

Assessment of the effects of physical environmental exposure on the humans

Physical exposures include radiation exposure, thermal environment exposure (heat stroke), and barometric environment. Of these, radiation exposure is the most familiar in our daily lives due to medical diagnosis and treatment. The main health effect of radiation exposure that affects us is carcinogenesis. However, various studies have been conducted on the carcinogenic effects of radiation exposure since the 1950s. We are systematically investigating these effects.

Assessment of the effects of biological exposures on the humans

In the case of biological exposure, bacterial exposure and viral exposure are representative of human health effects of the environment. Currently, a new coronavirus is causing a pandemic in the world. The transmission of new coronaviruses is thought to be through respiration and through contact. Along with this, food poisoning through food and drink is the most common form of bacterial and viral exposure. We are conducting research to collect these cases and study them, including legal developments, for future prevention.

Publication List

Tsuda T, Lindahl L, Tokinobu A: Ethical Issues Related to the Promotion of a “100 mSv Threshold Assumption” in Japan after the Fukushima Nuclear Accident in 2011: Background and Consequences. e-ISSN 2196-5412, Curr Envir Health Rpt 2017 DOI 10.1007/s40572-017-0145-0Curr Envir Health Rpt 2017; 4; 119-129.
Tsuda, Toshihide; Tokinobu, Akiko; Yamamoto, Eiji; Suzuki, Etsuji: Re: Associations Between Childhood Thyroid Cancer and External Radiation Dose After the Fukushima Daiichi Nuclear Power Plant Accident. Epidemiology: November 2018 - Volume 29 - Issue 6 - p e56–e57

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