Effects of changes in operational and residential factors on public health and reactions at the vicinity of Noi Bai International Airport
* Presenting author
The rapid development of air transport, together with the urbanization of the area around the airports, resulted in increased levels and wider influential scale of noise due to the airport operation. The number of flights operated and the population density at residential areas around Noi Bai International Airport has increased significantly in the past nine years. The exposure noise levels (Lden) at surveyed sites ranged between 48 and 61 dB in 2009, but increased to range between 54 and 76 dB in 2017. General health indicators such as Body Mass Index (BMI), blood pressure, etc. were investigated in two surveys conducted in November 2017 and August 2018. Exposure-response relationships established in the five surveys conducted from 2014 to 2018 were found to be higher than that established in 2009 survey. Comparisons of respondents with high blood pressure and insomnia ratios at different noise exposure level ranges showed that there is no significant association between ratios of hypertension and noise exposure levels (Lden) but a significant exposure-response relationship was found between night-time noise exposure levels and insomnia. This result suggested that a restriction on nighttime flight operation should be considered to protect health of resident living around airports in Vietnam.