A wide spectrum of risk assessments including qualitative and quantitative approaches andthe analyses of its consequence were performed for an environmentally sensitive object such asincineration facility. To find out the major risk concerns, HAZOP(Hazard and Operability) wereperformed. Then, the frequency of hazardous gas release scenarios was calculated. Finallyconsequence analyses were performed for the gas release scenarios. On the basis of analysesthrough evaluation, a more innovative way for making a better control system or theenhancement of operation procedure was given. The results from these analyses would act as asubstantial benefits for the incineration facility operator, and giving some measuredinformation for the neighbors and the people involved.
This study is performed to examine the relationship between air pollution exposure andmortality in Daejeon for the years of 1998 - 2001. Daily counts of death were analyzed bygeneral additive Poisson model, with adjustment for effects of seasonal trend, air temperature,humidity, and day of the week as confounders in a nonparametric approach. Daily deathcounts were associated with CO(4 day before), O3(current day), PM10(4 day before), NO2(6 daybefore), SO2(2 day before). Increase of 31.07 mg/m 3(interquartile range) in PM10 was associatedwith 2.0 % (95% CI = 0.5 % - 3.5 %) increase in the daily number of death. This effect was greaterin children(less than 15 aged) and elderly(more than 65 aged). We concluded that Daejeon had2 - 4 % increase in mortality in association with IQR in air pollutants. Daily variations in airpollution within the range currently occurring in Daejeon might have an adverse effect on dailymortality. These findings also support the hypothesis that air pollution at levels below thecurrent ambient air quality standards of Korea except PM10, is harmful to sensitive subjects,such as children or elderly.
Construction of highway would influence wildlife habitat being fragmented and
deteriorated. It is inevitable to observe the death of animals that are killed by vehicles.
Nonetheless the cause and status of animal roadkill have not been studied, and this study first
attempted to analyze the roadkill in major highway in Korea. We collected 860 individuals of
dead animals in Joongang Highway during 1996-2003. Among them Korean hare(Lepus
sinensis) was totaled in 165 individuals(19.2%) with the highest figure; Korean racoon
dog(Nyctereutes procyonoides) was 146(17.0%); Korean squirrel(Sciurus vulgaris) 56(6.5%); Korean
roe deer(Capreolus capreolus) 26(3.0%). Domestic animals was totaled in 232 individuals(27.0%);
domestic dog(Canis familiairis) 25, and domestic cat(Catus felis) 207.
This study also categorized habitat as mountain-mountain, mountain-plain, mountain-river,
plain-plain, plain-river, river-river in each side of the road. Habitat of mountain-plain was the
heightest with 296(38.9%) individuals followed by mountain-mountain with 263(34.6%). This
indicates that wild animals associated with mountain habitat was most influenced by the
construction of roads.
This study implied that we should mitigate the roadkill by designing artificial construction such as eco-bridge, fences along the sideway, and boxes under the highway, underdrain
structure, etc. The monitoring and cause of habitat fragmentation with GIS approach should be
followed to reduce the roadkill.