Hokkaido Airports Co., Ltd. implements environmental measures in accordance with relevant laws and regulations to operate the airports in an environmentally friendly manner.

• Hakodate Airport aircraft noise measurement results（measurement throughout the year)
• New Chitose Airport aircraft noise measurement results (Short term measurement)
• Kushiro Airport aircraft noise measurement results (Short term measurement)
• Wakkanai Airport aircraft noise measurement results (Short term measurement)
• Hakodate Airport aircraft noise measurement results (Short term measurement)
• Asahikawa Airport aircraft noise measurement results (Short term measurement)
• Obihiro Airport aircraft noise measurement results (Short term measurement)