Abstract
One of the purposes of this book is to provide the basic information that an environmental health practitioner (EHP) or officer (EHO)1 anywhere in the world can use to develop their competencies. Chapter 1 included a section that set out what is understood by the term 'environmental health' and also what can be considered 'an objective of environmental health'. As hopefully was made apparent, 'environmental health' is something more than that which an EHP 'does' as is well illustrated by World Health Organization (WHO) documents on the topic.2