FEIR for Boitshepi Landfill Site .pdf - Zitholele.co.za

99August 2010 8848Table 30: Impact Rating Matrix for Visual during the construction phase (Alternative 1-3).Type of Impact Significance Spatial Temporal Probability RatingInitial HIGH Study site Permanent Is occurring 3.3 – HighAdditional LOW Study site Short Term Will occur 2.0- LowCumulative HIGH Study site Permanent Is occurring 3.3 – HighResidual HIGH Study site Permanent Is occurring 3.3 – High11.1.8 Air QualityInitial ImpactThe contribution of various sources of emission to ambient particulate and gaseousconcentrations within the study area is of interest given the potential for elevatedconcentrations in the area. The most significant sources located in close proximity to theBoitshepi Waste Disposal Site include:• Stack, vent and fugitive emissions from industrial operations – industrial emissionsinclude various criteria pollutants (as SO2, Nox, CO and particulates), greenhouse gases(CO2 and CH4), volatile organic compounds (VOCs), semi-volatile organic compounds(SVOCs), various heavy metals and other toxins. The closest industrial activities to theBoitshepi Waste Disposal Site are Cape Gate (directly to the northwest) and ArcelorMittal Vanderbijlpark Steel (~1.5 km to the west). Sources of emission at theseoperations typically include stack emissions (i.e. particulates, Nox, SO2, VOCs, CO andCO2), and fugitive emissions from materials handling operations and crushing,windblown sources (i.e. waste dumps) and vehicle entrainment.• Fugitive emissions from mining operations – comprising mainly dust releases, with smallamounts of Nox, CO, SO2, methane, CO2 being released during blasting operations andvehicle exhaust. The closest mining operation to the Boitshepi site is New Vaal Colliery(~8.5 km to the southeast).• Vehicle tailpipe emissions – significant primary pollutants emitted by motor vehiclesinclude CO2, CO, hydrocarbons (HCs), SO2, Nox, particulate matter and lead. Theregional roads R57, R42 and R59 run to the east, south and west of the waste disposalsite respectively.• Household fuel combustion (coal, wood) – coal burning emits a large amount of gaseousand particulate pollutants including SO2, heavy metals, total and respirable particulatesincluding heavy metals and inorganic ash, CO, polycyclic aromatic hydrocarbons(PAHs), NO2 and various toxins such as benzo(a)pyrene. Pollutants from wood burninginclude respirable particulates, NO2, CO, PAHs, particulate benzo(a)pyrene andformaldehyde. Particulate emissions from wood burning have been found to containabout 50% elemental carbon and about 50% condensed hydrocarbons. Low incomesettlements where domestic fuel burning is prevalent are all around the Boitshepi WasteZITHOLELE CONSULTING