<Li> Pollution (e.g. Air pollution, water pollution) </Li> <Li> Road traffic accidents </Li> <Li> Non communicable diseases and weak healthcare systems . </Li> <P> Access to water, sanitation and hygiene (WASH) services is at very low levels in many developing countries . In 2015 the World Health Organization (WHO) estimated that "1 in 3 people, or 2.4 billion, are still without sanitation facilities" while 663 million people still lack access to safe and clean drinking water . The estimate in 2017 by JMP states that 4.5 billion people currently do not have safely managed sanitation . The majority of these people live in developing countries . </P>

Who are the poor in the developing world