2022 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2021 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2020 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2019 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2018 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2017 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2016 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2015 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2014 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2013 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2012 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2011 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2010 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2009 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2008 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2007 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance 2006 Enforcement Activities and Statistics under the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance