GEOLINKS International Conference 2019, Book 3
ECOLOGY AND ENVIRONMENTAL STUDIES
HEALTH RISK ASSESSMENT BASED ON NOISE DOSE SETTING
Prof. Dr. Irina May, Dmitrii Koshurnikov
The existing methodological approaches allows performing acoustic assessment in the territory with the allocation of zones of acoustic discomfort by hygienic criteria (СН 2.2.4 / 22.214.171.1242-96) and by criteria of risk to public health (MP 2.1.10.0059-12). However, the zoning of the urban area is of a population nature and does not reflect the individual scenario of the development of noise events. This study examined the possibility of using the method of establishing an individual dose of noise as a measure of human contact with the noise factor. An individual dose of noise is one of the stages of assessing the risk to the health of the population with an estimate of the daily weighted average daily noise level (Lden), which includes the main normalized periods of human life (during the day (Lday) and at night (Lnight)). The proposed methodological approaches are tested on the example of pre-school institutions of a large urban settlement, including the influence of the main sources of industrial and traffic noise. According to the results of the study, it was established that the population’s presence in the premises, namely, pre-school educational institutions, do not form significant levels of noise exposure. The highest levels of noise exposure are formed in the residential area, in the zone of direct influence of transport infrastructure facilities. At the same time, the weighted average daily level of equivalent noise is formed at a high level, which is caused by the occupancy of the groups of preschool institutions and the level of noise generated by groups of people. In general, the influence of noise from certain factors of industrial, domestic or transportation origin requires justification in terms of each person’s stay. Methods of assessing the risk to public health allow us to establish the main organs and systems exposed to noise, as well as to establish the age limit for the transition from one risk group to another under the conditions of the existing level of noise exposure. The results obtained make it possible to conduct timely assessments and develop an action plan to reduce the levels of the formulated public health risk in the context of dense urban development.
noise dose, noise exposure estimate, noise risk assessment, daily average noise dose, weighted average equivalent noise level.