Air quality monitoring is very important to provide public information about the impacts of air pollution on health, especially in health centers. Particulate less than 2.5 micrometer (PM2.5) is the main parameter of air pollution. This research aims to measure indoor and outdoor PM2.5 at a women and children’s hospital in West Jakarta. The method for collecting data of PM2.5 was with a low-cost sensor (LCS), which also collected temperature and humidity data. The LCS was collocated with two ambient air quality monitoring stations (AQMS) as the references. Field measurements at hospital were conducted for three months. The data are statistically analyzed with the openair model. The results show that LCS and AQMS followed a similar trend. Outdoor PM2.5 concentration is always higher than indoor. Peak hourly outdoor concentrations usually occur around midnight (24:00–03:00). The indoor peak concentrations are between 06:00–12:00. The indoor PM2.5 tend to be stable, while the outdoor varies throughout the day. The ratio of PM2.5 concentration (24-hour) indoor to outdoor is 0.8. In conclusion, the relation between indoor and outdoor air pollution is still not comprehensive due to temperature and humidity factors. All indoor and outdoor PM2.5 are above WHO Air Quality Guideline.
<strong>Aim:</strong> This study aims to identify the characteristics and generation of municipal solid waste (MSW) in Banyuwangi. <strong>Methodology and Results:</strong> The solid waste characterization was carried out in two areas in Banyuwangi, referring to the Indonesian National Standard (<em>Standar Nasional Indonesia</em>/SNI) 19-3964-1995. The results show that the highest composition is organics of 36% (39% from households/HSW and 35.35% from Non-HSW). The highest solid waste (SW) generation from industrial areas and train station are 0.61 and 1.38 kg/population.day, respectively, while the SW density from the bus station is 375.46 kg/m3. The weight, volume, and density of household solid waste (HSW) are 0.17 kg/population.day, 2.02 L/population.day, and 81.07 kg/m3, respectively. The population of Zone 1 and Zone 2 is 142.054 in 2016, generating 8,814 tons of HSW per year (tpy). <strong>Conclusion, significance and impact study:</strong> The main MSW compositions in Banyuwangi are organics (36%), plastics (17.20%), and papers (15.78%). Household solid waste generation in Banyuwangi reaches 8.8 tons per year with the primary compositions of 39% organics, 18.92% residues, 18.4% papers, and 14.4% plastics. The highest number of residue defines that 81% of solid waste can be recycled.
<p>Instalasi Pengolahan air (IPA) Solear merupakan salah satu fasilitas penting dalam memenuhi kebutuhan air. IPA Solear PDAM Tirta Kerta Raharja Kabupaten Tangerang berkapasitas 100 lt/detik. Tujuan dari penelitian ini adalah mengevaluasi kinerja unit operasi dan proses IPA Solear dan memberikan rekomendasi optimalisasi berdasarkan hasil evaluasi. Tahapan pada penelitian ini meliputi evaluasi kondisi IPA eksisting dan memberikan rekomendasi hasil evaluasi dan analisa kualitas hasil produksi IPA Solear. Hasil dari evaluasi debit maksimum intake 350 l/detik, koagulasi 720 l/detik, flokulasi 200 l/detik, sedimentasi 130 l/detik dan filter 220 l/detik sehingga, IPA Solear yang optimum dapat dilakukan dengan penggunaan debit maksimum yaitu 130 l/detik.<br />Kata Kunci: IPA, Evaluasi IPA, Optimalisasi IPA</p>
e r n a n i @ t r i s a k t i . a c . i d Abstrak. Metropolitan mengkonsumsi energi besar untuk memenuhi aktivitasnya yang sangat beragam dan berlangsung hampir 24 jam. Energi yang dihasilkan di Indonesia dominan berasal dari Pembangkit Listrik Tenaga Uap (PLTU) berbahan bakar batu bara. Pembakaran batu bara menghasilkan polutan udara berbahaya, antara lain timbal (Pb) dan merkuri (Hg). Pemerintah Indonesia telah menetapkan baku mutu udara ambien untuk timbal dalam pengendalian pencemaran udara (1999) dan baru-baru ini meratifikasi Konvensi Minamata mengenai merkuri (2017). Tujuan studi ini adalah untuk menganalisis konsentrasi dan sebaran Pb dan Hg di udara ambien yang bersumber dari PLTU terbesar di Indonesia. Sampel Pb dan Hg diambil dari total partikel tersuspensi (TSP) yang disampling menggunakan alat High Volume Air Sampler (HVAS) lalu dianalisis menggunakan X-Ray Flourencence (XRF) untuk Pb dan Atomic Absorption Spectroscopy (AAS) untuk Hg. Pengukuran dilakukan duplo selama dua hari di tiga titik sampling yaitu Desa Lebak Gede, Dermaga Tongkang dan Pantai Salira. Konsentrasi Pb terukur berkisar antara 0,014-0,159µg/Nm 3 . Sedangkan untuk Hg terukur berkisar 0,0035-0,0134 µg/Nm 3 . Hasil pengukuran menunjukkan konsentrasi Pb dan Hg masih memenuhi baku mutu di udara ambien, namun perlu terus diawasi. Perbandingan Pb terhadap TSP 0,051% dan Hg terhadap TSP 0,0051%. Sebaran Pb dan Hg di atmosfer dipengaruhi faktor meteorologi dan waktu tinggalnya di atmosfer yang dapat mencapai 10 hari sehingga dapat memberi dampak pada skala lokal maupun regional. Metropolitan perlu mengendalikan konsumsi energinya untuk mengurangi polutan udara berbahaya. Perlu penelitian lebih lanjut dengan jumlah sampel yang lebih banyak dengan kekerapan waktu sampling serta evaluasi terhadap baku mutu itu sendiri.
Climate change as certain phenomena has occurred globally and the impact feels by people especially for those who live on the island. Weather pattern shifting is one of the evidence of climate change impact, and many scientists are still trying to prove it. Weather affected by a combination of temperature, relativity humidity, etc. The fact that those parameters closely related to the need of health especially temperature and relative humidity and well-known thermal scale grouped in a range called discomfort index (DI). This study aims to analyze the outdoor condition in Bandar Lampung by figure out discomfort index. Weather parameter collected from secondary data of Teluk Betung weather station from 2007 – 2017 in three levels of high, average and low condition. In that period, temperature and humidity in Bandar Lampung relatively stable between 20-35∘C and 50-100%. In general, the city encountered with varies conditions by high temperature above 29∘C and high relative humidity more than 85%. Meanwhile, DI changes from year to year are not significantly occurred that indicates in high temperature, average and low weather are everyone feels severe stress, more than 50% of people feel discomfort, and comfortable condition. Nevertheless, every year it already shows an uncomfortable situation especially in high temperature and even at an average temperature. Furthermore, the study needs to compare with other weather stations in Bandar Lampung.
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