RT Journal Article T1 Predicting trace gas concentrations using quantile regression models A1 Conde Amboage, Mercedes A1 González Manteiga, Wenceslao A1 Sánchez Sellero, César K1 Quantile regression K1 NOx concentration K1 Prediction errors K1 Prediction intervals K1 Bootstrapping K1 Median regression AB Quantile regression methods are evaluated for computing predictions and prediction intervals of NOx concentrations measured in the vicinity of the power plant in As Pontes (Spain). For these data, smaller prediction errors were obtained using methods based on median regression compared with mean regression. A new method to construct prediction intervals involving median regression and bootstrapping the prediction error is proposed. This new method provides better coverage for NOx data compared with classical and bootstrap prediction intervals based on mean regression, as well as simpler prediction intervals based on quantile regression. A simulation study illustrates the features of this proposed method that lead to a better performance for obtaining prediction intervals for these particular NOx concentration data, as well as for any other environmental dataset that do not meet assumptions of homoscedasticity and normality of the error distribution PB Springer SN 1436-3240 YR 2017 FD 2017 LK http://hdl.handle.net/10347/18627 UL http://hdl.handle.net/10347/18627 LA eng NO Conde-Amboage, M., González-Manteiga, W. & Sánchez-Sellero, C. Stoch Environ Res Risk Assess (2017) 31: 1359. https://doi.org/10.1007/s00477-016-1252-4 NO This is a post-peer-review, pre-copyedit version of an article published in Stoch Environ Res Risk Assess. The final authenticated version is available online at: https://doi.org/10.1007/s00477-016-1252-4 NO This study was supported by Project MTM2013-41383P from the Spanish Ministry of Economy and Competitiveness, as well as the European Regional Development Fund (ERDF). Support from the IAP network StUDyS from the Belgian Science Policy is also acknowledged. M. Conde-Amboage was supported by FPU grant AP2012-5047 from the Spanish Ministry of Education DS Minerva RD 23 abr 2026