Lead levels have declined since the early 1990s, because of the ban on lead in petrol for motor vehicles. Although isolated hotspots of lead concentrations still exist in locations where lead smelting is undertaken, some of these are also decreasing. Port Pirie, South Australia, has reduced lead emissions to the atmosphere by improving its operating procedures (Figure ATM32). Lead levels at Port Pirie have continued to decrease since 2008 and have not exceeded the 0.5  µg/m3 NEPM standard during this time.

Keywood MD, Emmerson KM, Hibberd MF (2016). Ambient air quality: Lead. In: Australia state of the environment 2016, Australian Government Department of the Environment and Energy, Canberra, https://soe.environment.gov.au/theme/ambient-air-quality/topic/2016/lead, DOI 10.4226/94/58b65c70bc372