Model for Estimating Annual 98th Percentiles of Daily Mean Nitrogen Dioxide Concentrations from Annual Mean Concentrations near Highways.
Year: 1999
Type: article
Abstract: This paper focuses on the method of estimating the annual 98th percentiles of daily mean nitrogen dioxide (NO2) concentrations from the annual mean concentrations, as an index of environmental quality standard. In the past, the linear regression model based on old observed data has been used as a model for estimating the annual 98th percentiles of daily mean concentrations. But, it is pointed out that the model does not take into consideration characteristics of observing areas. We propose herein the modified model, which includes the exponential function of ratio of NO2 concentrations originated from highways and NO2 background concentrations as the regression parameter. Values estimated by the modified model are almost same as the observed values, and this shows modified model is more accurate than the present one.
Source: ENVIRONMENTAL SYSTEMS RESEARCH
Authors: Nodoka OSHIRO, Hirofumi OHNISHI, Toshiya YAMADA, Hiroyuki ONEYAMA, Taisuke MIKAMI
Institutions: Public Works Research Institute, The University of Tokyo
Language: English
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2326070444