EPA, ROC, initiated the “Establishment of Port Air Pollutant Emissions Inventory and Drafting of Management Strategies” project at 2009. The project goal is to improve port district air quality in the nation and also to fulfill the USA and ROC agreements in the “Port Air Quality Partnership Convention“. The project is expected to establish the pollutant emission inventory for 5 major commercial harbors in the nation within 2 years. Additionally, the project will formulate appropriate clean air action plan through research, propose recommendations regarding air pollution control measures in port districts, and reduce pollutant emission within port districts to achieve the goal on air quality protection.
This report documents the progress of the first year of the project. The project has thus far designed methodologies for estimating pollutant emission within port districts and has built an emission estimation model accordingly. This project has estimated emission inventory for Keelung Harbor, Taichung Harbor, Kaohsiung Harbor, and Hualien Harbor using 2009 as basis. Emission sources include ocean vessels, loading/unloading facilities, locomotives, heavy duty vehicles, fugitive emission of particulate matters, and etc. Estimation coverage excluding ocean vessels will expand to 20 nm outside the harbor and other emissions will emphasis on pollutant sources inside the port district. The resulted figures suggest that ocean vessels have the largest emission in every port. Among these ports, Kaohsiung Harbor has the largest emission. Emissions of NOX, VOC, CO, SO2, PM10, PM2.5, and DPM in Kaohsiung Harbor port district are 9291.4, 428.1, 1200.0, 8129.5, 668.5, 528.7, and 461.8 MT/year respectively. Green house gas emissions of CO2, N2O, and CH4 are 631184.9, 37.194, and 38.569 MT/year respectively. The equivalent green house gas is 643525.1 MT/year.
This project also compiles a review on relevant control scheme and regulation strategies within the nation and aboard. Furthermore, this project has compiled a draft Best Available Control Technologies and a clean air action plan for every port district.
In addition to literature review, this project invited environmental protection authorities in the states and civilian experts through Sustainable Development Division, EPA, ROC, for a research conference in Taiwan for communication of experience to conform to the Technical Environmental Protection Cooperation Plan between USA and ROC. In the mean time, this project also invited environmental protection officials from every harbor to the meeting to participate in discussion. An advisory conference was held with experts in the field of air pollution or harbor issues at June 2010. On the same afternoon, this project held a forum for the harbor authorities and their tenants.
According to the emission estimation result, port district emissions of NOX and SO2 have relatively higher percentages in the total emissions of their region. 26% and 19% of Keelung Harbor are the highest percentages among all harbors. Kaohsiung Harbor with 16% and 19% has the 2nd highest percentages. Therefore, port district emission control has its necessity. Also, based on the regulation strategy study, there are simple but effective regulation strategies such as reducing vessel speed, switching to alternative fuel, and etc. If these strategies set in motion first, it is advantageous for port districts to reach their emission reduction targets early.