Verification of Street Canyon Model for Predicting Air Pollutan Concentration to Transportation Way at Surabaya

By : Okik Hendriyanto Cahyonugroho

ABSTRACT

In predicting of carbon monoxide concentrations (CO) coming from emission of gas throw away motor vehicle in Pahlawan street of Surabaya used by street canyon model by Hassan and Crowther. Parameter estimation and model verification conducted accomodatedly model to data of concentration measurement of CO in field measurement. Street canyon model by Hassan and Crowther cannot be applied directly for predicting of rate of CO ambien at Pahlawan street of street canyon typical. This matter caused by model not include stability factor of atmosphere into its so that happened by deviation between rate of CO measured and CO model.

Keywords : pollutant estimation, pollutant concentration, street canyon model, verification model

ABSTRAK

Dalam memprediksi konsentrasi karbon monoksida (CO) yang berasal dari emisi gas buang kendaraan bermotor di jalan Pahlawan Surabaya digunakan model street canyon oleh Hassan dan Crowther. Estimasi parameter dan verifikasi model dilakukan dengan menyesuaikan model terhadap data pengukuran konsentrasi CO di lapangan, Model street canyon Hassan dan Crowther tidak dapat diterapkan secara langsung untuk memprediksi kadar CO ambien pada jalan Pahlawan yang bertipikal street canyon. Hal ini disebabkan karena model street canyon Hassan dan Crowther tidak memasukkan faktor stabilitas atmosfer ke dalamnya sehingga terjadi simpangan antara kadar CO terukur dan CO model.

Kata kunci : Estimasi parameter, konsentrasi polutan, model street canyon, verifikasi model