SEGH Articles

Health Protection: Principles and practice

14 October 2016
Do you struggle with understanding how to respond to the human health implications of environmental contamination? Dr Alex Stewart, a medical board member of SEGH, is an editor and contributing author of a new text covering the public health response.
Do you struggle with understanding how to respond to the human health implications of environmental contamination? Dr Alex Stewart, a medical board member of SEGH, is an editor and contributing author of a new text covering the public health response (known as health protection) to such situations, as well as to emergencies and incidents of infectious diseases.
 
  • The text comprehensively covers health protection with relevance to practitioners working in every area of the field, whether in public health or environmental sciences or other professions.
  • There are detailed descriptions with practical examples of how to respond to rapidly changing emergencies and complex and chronic environmental hazards and situations.
  • Guidance is provided on the practice of health protection through case studies and scenarios; each one is a realistic insight into health protection situations.
  • Uniquely, the book includes quick reference checklists (SIMCARDs) which provide a hands-on way of dealing with and providing public health advice on different health protection situations (acute & chronic), through concise, practically-focussed crib sheets of essential information and tasks covering a broad range of health protection topics: ideal for use in the field or even exam revision.
  • The textbook is relevant for non-specialists such as environmental scientists, as well as public health and health protection specialists. For non-specialists, and those without a medical background, the first four chapters give the grounding necessary to use the remainder of the book in a practical way.
 
Health Protection: Principles and practice is the first textbook in health protection to address all three domains within the field — environmental public health; emergency preparedness, resilience and response (EPRR); and communicable disease control — in a comprehensive and integrated manner. Written by leading practitioners in the field, the book is rooted in a practice-led, all-hazards approach, which allows for easy real-world application of the topics discussed.
 
The chapters are arranged in six sections:
1 In-depth introduction to the principles of health protection
Case studies and scenarios to describe common and important issues in the practice of health protection:
2 Infectious disease
3 Emergency preparedness, resilience and response
4 Environmental public health
5 Health protection tools (epidemiology, statistics, infection control, immunisation, disease surveillance, audit and service improvement)
6 Evidence about new and emerging issues, including environmental issues and disasters.
 
The book includes more than 100 checklists (SIMCARDs), covering the three domains of health protection. Written from first-hand experience of managing such issues, these provide practical, stand-alone quick reference guides for use in many, if not most, situations, likely or unlikely, that can and will be faced in this continually evolving field.
 
Both the topical content of Health Protection: Principles and practice, and the clearly described health protection principles the book provides, make it a highly relevant resource for professionals within and without public health and health protection.
 
Health Protection: Principles and practice. Edited by Samuel Ghebrehewet, Alex G. Stewart, David Baxter, Paul Shears, David Conrad, Merav Kliner. Oxford: OUP, 2016. Pp480
ISBN-10: 0198745478  ISBN-13: 978-0198745471
 
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Latest on-line papers from the SEGH journal: Environmental Geochemistry and Health

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    Abstract

    Samples of PM2.5 were collected from an urban area close to a national highway in Agra, India and sequentially extracted into four different fractions: water soluble (F1), reducible (F2), oxidizable (F3) and residual fraction (F4) for chemical fractionation of arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), nickel (Ni) and lead (Pb). The metals were analyzed by inductively coupled plasma optical emission spectroscopy in each fraction. The average mass concentration of PM2.5 was 93 ± 24 μg m−3.The total concentrations of Cr, Pb, Ni, Co, As and Cd in fine particle were 192 ± 54, 128 ± 25, 108 ± 34, 36 ± 6, 35 ± 5 and 8 ± 2 ng m−3, respectively. Results indicated that Cd and Co had the most bioavailability indexes. Risk Assessment Code and contamination factors were calculated to assess the environmental risk. The present study evaluated the potential Pb hazard to young children using the Integrated Exposure Uptake Biokinetic Model. From the model, the probability density of PbB (blood lead level) revealed that at the prevailing atmospheric concentration, 0.302 children are expected to have PbB concentrations exceeding 10 μg dL−1 and an estimated IQ (intelligence quotient) loss of 1.8 points. The predicted blood Pb levels belong to Group 3 (PbB < 5 μg dL−1). Based on the bioavailable fractions, carcinogenic and non-carcinogenic risks via inhalation exposure were assessed for infants, toddlers, children, males and females. The hazard index for potential toxic metals was 2.50, which was higher than the safe limit (1). However, the combined carcinogenic risk for infants, toddlers, children, males and females was marginally higher than the precautionary criterion (10−6).

  • Effects of steel slag and biochar amendments on CO 2 , CH 4 , and N 2 O flux, and rice productivity in a subtropical Chinese paddy field 2018-12-07

    Abstract

    Steel slag, a by-product of the steel industry, contains high amounts of active iron oxide and silica which can act as an oxidizing agent in agricultural soils. Biochar is a rich source of carbon, and the combined application of biochar and steel slag is assumed to have positive impacts on soil properties as well as plant growth, which are yet to be validated scientifically. We conducted a field experiment for two rice paddies (early and late paddy) to determine the individual and combined effects of steel slag and biochar amendments on CO2, CH4, and N2O emission, and rice productivity in a subtropical paddy field of China. The amendments did not significantly affect rice yield. It was observed that CO2 was the main greenhouse gas emitted from all treatments of both paddies. Steel slag decreased the cumulative CO2 flux in the late paddy. Biochar as well as steel slag + biochar treatment decreased the cumulative CO2 flux in the late paddy and for the complete year (early and late paddy), while steel slag + biochar treatment also decreased the cumulative CH4 flux in the early paddy. The biochar, and steel slag + biochar amendments decreased the global warming potential (GWP). Interestingly, the cumulative annual GWP was lower for the biochar (55,422 kg CO2-eq ha−1), and steel slag + biochar (53,965 kg CO2-eq ha−1) treatments than the control (68,962 kg CO2-eq ha−1). Total GWP per unit yield was lower for the combined application of steel slag + biochar (8951 kg CO2-eq Mg−1 yield) compared to the control (12,805 kg CO2-eq Mg−1 yield). This study suggested that the combined application of steel slag and biochar could be an effective long-term strategy to reduce greenhouse gases emission from paddies without any detrimental effect on the yield.