If we start with 'Of particular significance --the American public has become acutely aware of the hazards to their health, including the risk of mortality, posed by inhalation of fine particles and exposure to mercury through fish consumption.', does it make sense to conclude with 'The American public is still very unaware of the health risks of inhaling small particles.'
Of particular significance --the American public has become acutely aware of the hazards to their health, including the risk of mortality, posed by inhalation of fine particles and exposure to mercury through fish consumption.###The American public is still very unaware of the health risks of inhaling small particles.