Persepsi Kenyamanan Pejalan Kaki pada Jalur Pedestrian Jalan Gajah Mada Denpasar

Perceptions of pedestrian convenience on the pedestrian path of Gajah Mada Street Denpasar. Gajah Mada Street as an economic and tourist area requires good and comfortable physical infrastructure to support easy accessibility and circulation of visitors to the area. One of the physical infrastructures is a pedestrian lanewhich functions as an access to support pedestrian activities. The purpose of this study was to identify the physical conditions of the pedestrian paths and to determine the perception of pedestrian comfort on the pedestrian path at Gajah Mada Street. The research method used in this research is a survey method byperforming primary data collection techniques through observation, questionnaires and secondary data through literature study. Based on the research conducted, it is known that there are physical conditions and supporting facilities for the damaged pedestrian paths, in the form of materials and street furniture such as: seats, trash cans and roadside plants. Based on the assessment of perceptional respondents about the condition of pedestrian path has been considered comfortable and safe. The suggestion of this research is that it is necessary to improve the physical condition of the damaged pedestrians. The purpose of improving pedestrian facilities and infrastructure is to facilitate the pedestrians in order to be comfortable and safe in carrying outactivities on the pedestrian path.

Assessing Health Risk in Livestock through Quantification of Iron in Forages, Soil and Buffalo Blood from Sargodha, Pakistan

Air pollution is very important issue now-a-days. This has affected the components of environment to a great extent. Organisms like animals, plants and human beings are forced to live in such polluted environments. One of the pollution sources to the environment is vehicular traffic which has toxic effect on the roadside plants. In this study, roadside forages, soil and buffalo blood were studied to estimate the level of heavy metal pollution, iron in particular, in Sargodha from six chosen sites at perimeter of major roads. Collected samples were processed and digested for quantification of iron by atomic absorption spectrophotometer. Soil and buffalo samples from the site V showed high concentration of iron, whereas in forage, samples collected from site IV had greatest iron concentration. The bio concentration factor found for forage-soil was highest in the samples collected from site IV. On the other hand, bio-concentration factor for blood-forage and pollution load index was found highest in the samples collected from site V. Correlation for soil-forage and blood-forage was found negatively non-significant. The daily intake of metals for iron was found highest for site IV. The Health risk index was highest for the samples collected from site VI.

Roadside Plants as Bio-indicators of Urban Air Pollution

This paper describes air pollution tolerance among roadside plants exposed to varying degrees of vehicular pollutants. Evaluation of air pollution tolerance index (APTI) of 10 selected wild plant species was carried out to assess their response to ambient levels of air pollutants along the busy roadways of Ahemadnagar Four parameters namely total chlorophyll, ascorbic acid, pH of leaf extract and relative water content were determined and computed together to signify air pollution tolerance index (APTI) of plants. The observed significant reduction in total chlorophyll, ascorbic acid and relative water content showed inverse relationship with traffic density. Similarly, pH of leaf extract followed an exponential decrease with increase in traffic density and drifted towards acidic range. Comparison of APTI values from control to polluted sites revealed maximum reduction in Bougainvillea spectabilis while least change was noted in Peltophorum pterocarpum. Among the plants studied maximum net per cent reduction of APTI over control was seen in Bougainvillea spectabilis and Ageratum conyzoides and are considered to be sensitive species. While Peltophorum pterocarpum and Portulaca oleraceae are tolerant species since they have shown least per cent reduction in APTI.

Effects of different environmental pollutants on the anatomical features of roadside plants

Experiments were conducted in order to investigate anatomical changes in leaves and stems of roadsides plants namely Mango (Mangifera indica), SilKoroi (Albizia procera) and Mahagony (Sweatenia mahogany). Plants that grown nearby roadside areas were exposed to various kinds of pollutants. To carry out the experiment, samples (Fresh leaves and Stems) were collected from two polluted sites and one control site. For anatomical study leaves and stems were cut into sections in the laboratory and changes were identified under the light microscopy. Results revealed that leaves of selected roadside plants had reduced cell size with black dot like substance deposited in the epidermis, palisade and spongy parenchyma in the polluted sites. But leaves of control site plants had normal anatomy. Meanwhile stem showed changes in vascular bundle of pollution affected sites but no change was found in control site. These results highlighted the importance of anatomical data for precious diagnosis of injury and to determine the sensitivity of roadside plants to different environmental pollutants. Progressive Agriculture 30 (4): 344-351, 2019

Evaluation of trace elements and particulate matter deposition on plant foliage exposed to vehicular pollution

In recent times, highly developed metropolitan cities have progressively used biodiverse roadside plants as an eco-sustainable tool for the mitigation of air pollution. The present study has been designed to scrutinize the impact of particulate matter (PM) deposition and heavy metal accumulation in roadside plants. Some of the common roadside plants found along the national highway at Thane (Mumbai) region that were selected for this study are Alstonia schlolaris, Bauhinia variegata, Ficus benghalensis, Ficus religiosa, Cassia fistula, and Mangifera indica. The inductively coupled plasma atomic emission spectroscopy (ICP-AES) analysis was carried out for five heavy metals, namely Cr, Cu, Fe, Mn and Zn. The particulate matter deposition was observed to be the highest in Ficus benghalensis (1.14 mg kg−1), while it was found to be the lowest in Bauhinia variegata (0.71 mg kg−1). The present study revealed that the accumulation of heavy metals in plants inversely varies with the deposition of dust on the surface of leaves. The tolerant species of plants can serve as natural biofilters that can alleviate environmental pollution to certain extent.