1. Introduction
The guest editor for this special issue asked me to describe some of my many interactions over the past 60 years with those on both sides of the ongoing “war” over fluoridating drinking water [1]. Although in recent years the war has been reduced to local skirmishes over referendums, the war will undoubtedly heat up again if the federal appeals court in San Francisco rules for the plaintiff and mandates that the EPA stop fluoridation in the United States! As one of the few r
Introduction
Soil pollution by potentially toxic elements (PTEs) has spread worldwide, provoking the ecosystem and health risks to humans, owing to their stable, persistent, and irreversible properties (1). Crops grown in contaminated soils may accumulate PTE in their edible parts, resulting in an excessive human intake, which eventually poses adverse impacts to humans via the food chain (2–4). PTE can enter the human body in three ways including ingestion, inhalation, and dermal contact, w
On 23 September 2021, the four UK Chief Medical Officers (CMOs) stated 'there is strong scientific evidence that water fluoridation is an effective public health intervention for reducing the prevalence of tooth decay and improving dental health equality across the UK'.1
Water fluoridation started in the USA in 1945 and is currently practised in about 25 countries. In the USA, 74% of the population receives fluoridated water, with over 200 million people having their water fluoridat
Highlights
Rats were exposed during 6 weeks to repeated i.p. injections of lead acetate, sodium fluoride or both in doses 0.05 LD50.
The development of intoxication was estimated quantitatively with 54 functional, biochemical and morphometric indices.
For mathematical description of effects a response surface regression model containing linear and cross terms was used.
10 types of combined action were found thus confirming the result of the similar study on Pb and Cd.
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