"Average concentration of mercury in blood in the Canadian population, aged 20 to 79, Cycle 1 (2007 to 2009) to Cycle 6 (2018 to 2019)",,,,, ,,,,, Survey period,20 to 39 years (micrograms per litre),40 to 59 years (micrograms per litre),60 to 79 years (micrograms per litre),Females (micrograms per litre),Males (micrograms per litre) "Cycle 1 (2007 to 2009)",0.72,1.00,0.92,0.87,0.90 "Cycle 2 (2009 to 2011)",0.71,1.00,1.20,0.86,0.99 "Cycle 3 (2012 to 2013)",0.82,0.96,1.00,0.94,0.90 "Cycle 4 (2014 to 2015)",0.55,0.77,0.88,0.68,0.73 "Cycle 5 (2016 to 2017)",0.61,0.88,0.84,0.79,0.73 "Cycle 6 (2018 to 2019)",0.78,0.84,0.98,0.83,0.87 ,,,,, ,,,,, "Note: Average refers to geometric mean. Averages based on ages 3-19 are not presented as they are not consistently available for all cycles (i.e. geometric means could not be calculated for certain child age groups as either data were not available (3-5 years, cycle 1) or more than 40% of the samples were below the limit of detection for certain child age groups (6-11, and 12-19 years, cycles 3 and 4). Due to poor detection in younger age groups preventing the calculation of geometric means for the total population by sex, averages for males and females are also presented for ages 20-79 years only. Mercury is shown as total mercury (organic and inorganic).",,,,, Source: Health Canada (2021) Mercury in Canadians (https://www.canada.ca/en/health-canada/services/environmental-workplace-health/reports-publications/environmental-contaminants/human-biomonitoring-resources/mercury-canadians.html).,,,,, Available on the Environmental indicators website (www.canada.ca/environmental-indicators).,,,,,