No abstract

The Hasanuddin University Faculty of Engineering in Gowa is the largest engineering campus in South Sulawesi. The lecture activities are very complex which are not only teaching and learning but also households and offices activities. Therefore, it is important to know the mapping of existing carbon footprint on the campus due to the complexity of the campus activities. The purpose of this study is to determine the level and mapping of the carbon footprint on campus. The method used is to halve emissions into primary and secondary carbon footprint emissions. The results of this study indicate that the greatest emissions is generated from the secondary carbon emissions which is electricity consumption amounting to 1,315,429.63 KgCO2/Year, and the lowest emissions is resulted from the use of paper at 49.39 kgCO2/Year. For the buildings the highest CO2 emissions is generated from the Architecture Department building at 289,176.26 KgCO2/year and the lowest CO2 emissions is generated from the Naval B Department building at 20,599.20 KgCO2/year. The mitigation scenario in reducing CO2 emissions effectively is by implementing Earth Hour for 1 hour every month which can reduce electricity consumption by 582,541.78kWh/Year and CO2 emissions at 164,428.70 KgCO2/year. The effective scenario to decrease waste is by implementing 3R with 2% waste reduction which is 167,332.79 Kg/Year and emissions CO2 are 4,772.41 KgCO2/Year.

Car Free Day is a movement to reduce the level of air pollution in big cities around the world caused by the emission load of vehicles. The event gives motorists and commuters an idea of their locality with fewer cars. Vehicles produce CO emissions from the fuel combustion process. This research was conducted on alternative roads in 3 Car Free Day locations in Makassar City, which are 1) Boulevard with an alternative road Ance Daeng Ngoyo, 2) Sudirman with an alternative road Karunrung and 3) Losari Beach with an alternative road Hj. Saleh Daeng Tompo. Analysis of measurement data using the method of the number of vehicles and Indonesia’s emission factors and Indian emission factors. The results of the study show that the CO emission load on Jl. Ance Daeng Ngoyo and Jl. Karunrung, when Car Free Day (Sunday) is smaller than Non Car Free Day (Monday) while on Jl. Hj Saleh Daeng Tompo when Car Free Day (Sunday) is greater than Non Car Free Day (Monday). The results of statistical tests also showed that there were no significant differences when Car Free Day (Sunday) and Non Car Free Day (Monday).

Activities at PT. PLN (Persero) Makassar Tello Sector especially Gas Turbine Power Plant produces exhaust emissions that can be pollution for the environment if the quality is not monitored. Therefore, an analysis of the pattern distribution of exhaust emissions in Gas Turbine Power Plant needs to be done to determine the concentration produced and dispersion pattern and direction of its spread. The modeling in this study uses AERMOD software and requires meteorological support data and ground elevation to run the software. The results showed that the distribution of SO2, NO2, CO, and particulates gas pollutants was in line with the dominant wind direction found in windrose. The concentration received by the receptors is very small and does not exceed the ambient air quality standards based on South Sulawesi Governor Regulation Number 69 of 2010 which is 365 μg/Nm3 for SO2, 150 μg/Nm3 for NO2, 10,000 μg/Nm3 for CO, and 230 μg/Nm3 for particulates. Thus, the impact received by the receptor is not felt directly.

The increase in urban slum areas provokes the adaptation impact of the community towards the capability conflict and the need for shelter. Slums management by displacing residents often raises new problems that are equally complicated. Hence, another alternative treatment by maintaining household-scale green open space (RTH) to improve the quality of life of the community and the environment is necessary. The problem of slums in big cities, including in the city of Makassar has not been able to be overcome properly, one of which is the problem of slums in the Mario Sub-District, Mariso District, Makassar City where the conditions of the slums are a severe result. The concept of managing the existing slums is not only producing buildings that are habitable, but also providing green open space is one of the solutions in structuring the existing area. At present, green open space not only provides open space planted with green vegetation but has the concept of Sustainable Open Green Space or known as the Green RTH concept. In this case, the concept introduced to local residents is green open where available wastewater treatment, composter and infiltration wells and biopores. It is these facilities which are expected to be able to deal directly with the problems of clean air, wastewater and waste problems that are always present in slums. The presence of the “Sustainable” Green Open Space which explains the concept of Green RTH namely green waste and green water can minimize the slums in the region. In green waste concept, 3 communal composters are made, each composter has a volume of 440 liters for 1235.775 liters / day of waste generation, while in the green water concept, a Wastewater Treatment Plant has an area of ​​302.8 m2, 1 infiltration well , 5 biopori infiltration holes and 2 hydrants.

No abstract

This research aimed to analyze the noise reduction based on the noise barrier along the Makassar-Parepare railway. The measurement was conducted on Makassar-Parepare line, which consists of 4 types of areas. Six of the observation points are in residential areas, 1 point in commerce area, 1 point in the green open space area, and 1 point in the station area. Each region has 6 measurement points. So that the whole measurement points are 54 measurement points. The noise level measurement was conducted using simple SLM (sound level meter) placed at 3 meters from the side of the road with a height of 1.2 meters from the road surface and omitted the background noise by using windscreen from the SLM. Measurements were operated every 10 minutes for four-time intervals which are 06.00-09.00, 09.00-14.00, and at 14.00-17.00. The research result shows the settlement areas consisting of 36 measurement points, in which 69% has exceeded the quality standard, and 31% are still below the standard. For the green open space area which includes six measurement points, 17% has exceeded the quality standard, and 83% are still below the standard. For the commerce area and stations which consist of 6 measurement points, 100% of the areas are still below the standards. The noise barrier design could reduce the noise level 5.0 until 7.7 dB.

Makassar as a developing city is experiencing development from the transportation sector. This resulted in the increasing number of vehicles. The increase in the number of vehicles produces emissions that cause air pollution, including NO2 emissions from motor vehicles. Currently NO2 concentration can be determined by direct measurement using the Gries Saltman method and pollutant prediction using the Caline program. This research was conducted on the Makassar city toll road which is divided into nine sample points. This study aims to determine the level of NO2 concentration from the transportation sector on the Makassar city toll road. Concentration results from direct measurements and predictions of caline are compared to show the level of concentration present. The results of the NO2 concentration are still below the threshold value that has been set in the latest applicable regulations, which is 200 g/Nm3 with a measurement time of 1 hour. The high or low value of NO2 concentration is influenced by the vehicle volume factor, where the NO2 concentration increases along with the increase in vehicle volume. In addition, it is also influenced by meteorological factors. Based on the results of the Caline-4 software output, the results obtained from the distribution of NO2 concentrations at each receptor found on the Toll Road in Makassar City, it can be stated that it is still below the threshold value set in the latest applicable regulations, which is 200 g/Nm3 with time measurement for one hour.