Skip to main content

Hong Kong implements emission reduction

Manufacturer of emissions reduction systems, Eminox, is to take part in a US$4.5 million project to reduce NOx pollution in Hong Kong. The scheme will see buses retrofitted with the latest in emission control technology to help make Hong Kong a safer environment to live and work. Hong Kong’s Environmental Protection Department (EPD) aims to upgrade 1,400 buses with retrofit selective catalytic reduction (SCR) technology to dramatically reduce NOx. A pre-qualification programme is currently taking place,
January 30, 2015 Read time: 2 mins
Manufacturer of emissions reduction systems, Eminox, is to take part in a US$4.5 million project to reduce NOx pollution in Hong Kong. The scheme will see buses retrofitted with the latest in emission control technology to help make Hong Kong a safer environment to live and work.

Hong Kong’s Environmental Protection Department (EPD) aims to upgrade 1,400 buses with retrofit selective catalytic reduction (SCR) technology to dramatically reduce NOx.  A pre-qualification programme is currently taking place, in which Eminox, as one of four suppliers, has retrofitted 23 buses with SCR systems, effectively achieving a full SCRT system. The company says the systems are delivering NOx reduction well beyond the 60 per cent scheme requirement.

Steve Rawson, head of retrofit engineering at Eminox, commented: “We are delighted to be involved with such a high-profile international project to tackle on-street pollution in Hong Kong. By retrofitting the existing fleet of buses, we can improve air quality in an area which urgently needs attention – without the high costs associated with replacing an entire fleet. Our SCR technology delivers proven real world NOx reduction that can make a real difference to air quality.”

In a bespoke project approach, engineers monitored the temperature at which the buses were operating and measured the packaging envelope using laser scanning, then designed the system to exceed performance targets. Eminox produced different system designs to fit the limited space envelope on a variety of buses.

Fitting of the systems by Eminox applications engineers began in October 2014 and spanned a period of 32 days. Real-world NOx reduction is continuously monitored using sensors fitted to the buses and will continue over the 12 month trial period.

Related Content

  • August 4, 2017
    Clean vehicle retrofit scheme provides key component of UK government AQ plan
    Developed jointly by the Low Carbon Vehicle Partnership (LowCVP) and the Energy Saving Trust (EST) together with industry stakeholders through funding and support from the DEFRA/DfT Joint Air Quality Unit (JAQU), the just-launched Clean Vehicle Retrofit Accreditation Scheme (CVRAS) aims to provide the provide the backbone of future retrofit funding for vehicle emission control systems. By providing a single standard for any emission technology to be validated to meet the standards set out in the government’
  • November 17, 2014
    Air quality tops transportation agendas
    Colin Sowman catches up on some of the latest research around outdoor pollution and looks at options available to authorities in areas of poor air quality. Iair quality hasn’t already reached the top of the agenda in transportation department meetings in your area, it probably soon will with national, trans-national and even global bodies calling for authorities to reduce pollution levels.
  • April 26, 2019
    London debuts three more low-emission bus zones
    Transport for London (TfL) and the city’s mayor Sadiq Khan have introduced three more low-emission bus zones (LEBZ) to help reduce toxic air in the UK capital. There are now 10 LEBZs in London, which are expected to reduce nitrogen oxide (NOx) by 90% along some of the capital’s most polluted roads. Buses operating within the zones meet the cleanest emissions standards and have been delivered through a combination of new and retrofitted vehicles, TfL says. The three new zones in Lewisham, Stratford and
  • March 12, 2021
    Siemens influences congestion reduction
    When it comes to reducing congestion, even relatively small interventions can have significant and positive knock-on effects, suggests Steve O’Sullivan of Siemens Mobility