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ltroad 发表于 2016-2-24 10:31 
已经修正了，不过滤直接排。
谢谢！
我在他们网站上查了查，没有很多具体的信息，
贴在这里让家人慢慢对着看吧，
Statement: 'A single 23 metre high stack (about 8 stories) will pump 9 kilometres of tunnel pollution into our air.'
Clarification
The northern ventilation outlet would be around 15 metres in height, relative to nearby houses and located 23 metres in height relative to the motorway which is lower than the surrounding local roads. This is shown in Section 5.2.5, Table 5-2 in the EIS. Air quality within the tunnel is maintained to ensure it is safe for users and the same air is dispersed high into the atmosphere through the ventilation the outlets.
NorthConnex provides a direct link for motorists from the M1 Pacific Highway and the Hills M2, without having to travel on Pennant Hills Road, which experiences heavy traffic flow and congestion. NorthConnex is a continuous, free-flowing, flatter grade tunnel compared to the undulating Pennant Hills Road, which has 21 sets of traffic lights resulting in stop/start traffic movements and associated emissions from idling traffic. Vehicles will travel within the tunnel for about six minutes, which is a significantly shorter travel time than Pennant Hills Road. As a result fewer emissions would be generated by vehicles using the tunnel compared to the stationary traffic currently releasing emissions at surface level in the local area for most of the day.
Tunnel design aspects are discussed in Section 5.2.3 and the indicative tunnel ventilation system design for three different traffic conditions is shown in Section 5.2.5, Figure 5 -14.
Experience from other motorway tunnels and studies of ambient air quality data from existing Sydney tunnels has confirmed emissions from ventilation outlets have a negligible impact on local and regional air quality, and are so small they cannot be measured. A discussion of the NorthConnex tunnel performance relative to other Sydney motorway tunnels and lessons learned from the M5 East tunnel are included in Section 7.3.4, page 517 in the EIS.
Statement: 'Not all pollutants are dispersed, a significant proportion will expose the community.'
Clarification
Modelling has shown the effect of the vehicle emissions from the tunnel via the ventilation outlets to be negligible. Tunnels do not create new emissions. They take existing emissions from traffic, dilute them with fresh air and more effectively disperse them higher in the atmosphere through a ventilation outlet (rather than at roadside where they are currently dispersed).
As indicated above, total emissions generated by vehicles using the tunnel would be less than those vehicles using Pennant Hills Road. This is discussed in Section 7.3.4, page 504 of the EIS.
Well-designed ventilation outlets are very effective at dispersing vehicle emissions so they have a negligible impact at ground level. Tunnel air will be efficiently dispersed into the atmosphere via the NorthConnex ventilation outlets, with exit speeds up to 19 metres per second (almost 70 kilometres per hour). Once high up in the atmosphere, tunnel air continues to dilute and disperse, mostly over many kilometres. The majority of emissions disperse to background levels. Some emissions return to ground level, however these are highly diluted and as modelling shows with a negligible impact to local air quality. This is discussed in Section 7.3.4 and in Table 7-97 in the EIS.
To validate the air quality modelling, air quality in the vicinity of the project (including near ventilation outlets) would be monitored before and after the tunnel is operational for a minimum of 12 months following the project opening. Air quality monitoring would remain in place for a specified time as part of planning conditions of consent. This commitment is made in the Project Overview document, page 30. The exact location and numbers of monitors would be resolved after discussions with Department of Planning and Environment and are expected to form part of the planning conditions if the project gets approved.
Furthermore, requirements for ongoing monitoring of both in tunnel air and emissions from ventilation outlets will be set by the Department of Planning and Environment. This monitoring data will be publicly available. Conservatism in modelling has shown that outlets on other recent tunnel projects are operating well below their acceptable criteria.
Statement: 'The worst impact extends from Hornsby Station to Warrawee Station, to the Sydney Adventist Hospital and to North Wahroonga.'
Clarification
The air quality modelling for the project was comprehensive and used conservative assumptions to predict the changes in air quality as a result of the tunnel operating. The predicted change to air quality in the areas described above is less than two per cent of the relevant impact assessment criteria, which is below the normal variability experienced and is undetectable from existing background conditions. This is discussed in Section 7.3.4 and shown in Section 7.3.4, Figures 7 -28 and 7-29 in the EIS.
Air monitoring before and after the tunnel is operational is expected to demonstrate negligible impact to local air quality, consistent with studies carried out for the M5 East and Lane Cove tunnels.
Statement: 'No air pollution is treated. No filtration is planned.'
Clarification
There is no tunnel ventilation outlet in Australia that has filtration.
Filtration would not deliver any measurable benefits to the surrounding community. As shown in the air quality assessment for NorthConnex, emissions from the ventilation outlets would cause a negligible change in local air quality, and levels of particulate matter are within all relevant guidelines and standards. An analysis of the need for filtration is included in Section 7.3.1 of the EIS.
In addition, the NSW Government is continuing to target emissions at the source – the vehicles themselves – through a range of education, compliance and regulation measures including better fuels, improved technology and stringent emission standards. This strategy has proven very effective and benefits the community as a whole as vehicles and trucks travel throughout the state.
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烂肉炒泡豇豆!!地道四川下饭菜......改良版！！！ (2010-1-14) jmms_smmj 
楼主:Nui
发表于 2016-2-24 09:08
