Hilyana Margahayu, Hilyana
Jurusan Geografi, Fakultas Ilmu Sosial, Universitas Negeri Semarang

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SEBARAN VEGETASI DAN KONSENTRASI GAS CO - Pb DI TAMAN KB, SIMPANG LIMA, DAN TUGU MUDA KOTA SEMARANG Margahayu, Hilyana; Hariyanto, Hariyanto; Setyowati, Dewi Liesnoor
Indonesian Journal of Conservation Vol 4, No 1 (2015): IJC
Publisher : Indonesian Journal of Conservation

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Abstract

The warming temperatures are caused high gas escaping emissions in the air. Industrial activities and transport in the city led to increased gas CO, Pb, dust and noise. It needs the efforts to restructure and improve the environment through a city park. City park in addition to having a value of beauty is also able to absorb dust particles, gases CO, Pb and noise. This study aimed to vegetation distribution and gas concentration CO, Pb, dust, noise in the garden city of Semarang. The object of this study was the city park area in the district of Semarang and Semarang in the form of South Central. The research sample KB Park, Taman Simpang Lima and Garden Tugu Muda. The research variables include the type and amount of vegetation, species composition of vegetation, vegetation density and state of vegetation distribution, gas concentration CO, Pb, dust and noise. Data analysis techniques use quantitative descriptive analysis. The distribution of vegetation in the park KB, Simpang Lima Park and Garden Tugu Muda of aspects of the composition of the vegetation is very little to the value category ≤20,0%, aspects of the category of very rare vegetation density value ≤14,0%, and distribution of vegetation including the category of very ugly with ≤20,0% value. The concentration of air pollutants such as dust 409 μgr / m3 and 76.19 dBA noise both have exceeded the national ambient air quality standard. When compared to the air pollution in Taman Simpang Lima and Garden Tugu Muda higher than Taman KB. Semarang City Government needs to increase the number of trees in the Garden of KB to be effective in lowering the levels of CO, lead and noise. Memanasnya suhu di kota-kota besar disebabkan oleh tingginya gas emisi yang lepas di udara. Kegiatan industri dan transportasi di kota menyebabkan meningkatnya gas CO, Pb, debu dan kebisingan. Diperlukan usaha untuk menata dan memperbaiki lingkungan melalui taman kota. Taman kota selain mempunyai nilai keindahan juga mampu menyerap partikel debu, gas CO, Pb dan kebisingan. Tujuan penelitian mengetahui sebaran vegetasi dan konsentrasi gas CO, Pb, debu, kebisingan di taman Kota Semarang. Objek penelitian ini adalah kawasan taman kota di Kecamatan Semarang berupa Selatan dan Semarang Tengah. Sampel penelitian Taman KB, Taman Simpang Lima dan Taman Tugu Muda. Variabel penelitian meliputi jenis dan jumlah vegetasi, komposisi jenis vegetasi, kerapatan vegetasi dan keadaan sebaran vegetasi, konsentrasi gas CO, Pb, debu dan kebisingan. Teknik analisis data berupa analisis deskriptif kuantitatif. Sebaran vegetasi di Taman KB, Taman Simpang Lima dan Taman Tugu Muda dari aspek komposisi vegetasi kategori sangat sedikit dengan nilai ≤20,0%, aspek kerapatan vegetasi kategori sangat jarang dengan nilai ≤14,0%, dan sebaran vegetasi termasuk kategori sangat jelek dengan nilai ≤20,0%. Konsentrasi cemaran udara seperti debu 409 µgr/m3 dan kebisingan 76,19 dBA keduanya telah melebihi batas baku mutu udara ambien nasional. Kalau dibandingkan maka cemaran udara di Taman Simpang Lima dan Taman Tugu Muda lebih tinggi dari Taman KB. Pemkot Kota Semarang perlu menambah jumlah pohon di Taman KB agar efektif dalam menurunkan kadar CO, timbal dan kebisingan. 
ANALISIS KONSENTRASI GAS CO DAN Pb PADA TAMAN KOTA DI KECAMATAN SEMARANG SELATAN DAN SEMARANG TENGAH KOTA SEMARANG Margahayu, Hilyana; Hariyanto, Hariyanto; Setyowati, Dewi Liesnoor
Geo-Image Vol 4 No 1 (2015)
Publisher : Geo-Image

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Abstract

Karbon monoksida atau CO adalah suatu komponen tidak berwarna, tidak berbau dan tidak mempunyai rasa yang terdapat dalam bentuk gas pada suhu diatas -192°C. Komponen ini mempunyai berat sebesar 96,5% dari berat air dan tidak larut di dalam air (Fardiaz, 1998:92). Tujuan penelitian ini: 1) mengetahui kondisi sebaran vegetasi di Kecamatan Semarang Selatan dan Semarang Tengah, 2) mengetahui konsentrasi gas CO, Pb, debu dan kebisingan di Taman KB, Simpang Lima dan Tugu Muda di Kecamatan Semarang Selatan dan Semarang Tengah. Variabel penelitian meliputi kondisi sebaran vegetasi di taman kota, konsentrasi gas CO, Pb, debu dan kebisingan di taman kota. Hasil penelitian menunjukkan, kondisi sebaran vegetasi di Taman KB, Taman Simpang Lima dan Taman Tugu Muda untuk komposisi vegetasi masuk dalam kategori sangat sedikit (≤20,0%), kerapatan vegetasi masuk dalam kategori sangat jarang (≤14,0%) dan keadaan sebaran vegetasi masuk dalam kategori sangat jelek (≤20,0%). Hasil pengukuran cemaran udara menunjukkan bahwa konsentrasi cemaran udara di Taman Simpang Lima dan Taman Tugu Muda lebih tinggi dibandingkan di Taman KB. Konsentrasi cemaran udara seperti debu 409 µgr/m3 dan kebisingan 76,19 dBA keduanya telah melebihi batas baku mutu udara ambien nasional. Carbon monoxide or CO is a component of a colorless, odorless and does not have a sense that there is in the form of a gas at temperatures above -192 ° C. This component has a weight of 96.5% of the weight of water and insoluble in water (Fardiaz, 1998: 92).The purpose of this study : 1) determine the condition of the city parks in the District of South Semarang and Central Semarang, 2) determine the concentration of CO, Pb, dust and noise in the KB Park, Simpang Lima and Tugu Muda of Southern District Semarang and Central Semarang. The variables of the study include the distribution of vegetation conditions in a city park, the concentration of CO, Pb, dust and noise in the city park. The results showed that the distribution of vegetation conditions in the KB Park, Simpang Lima Park and Tugu Muda Park to the composition of the vegetation in the category is very few ( ≤20,0 % ), the density of vegetation in the category is very rare (≤14,0 %), and state distribution of vegetation in the category is very ugly (≤20,0 %). The measurement results showed that the air contaminant concentration of air contaminants in Simpang Lima Park and Tugu Muda Park is higher than in KB Park. The concentration of air contaminants such as dust 409 µgr/m3 and 76,19 dBA of noise, both have exceeded the national ambient air quality standards.