The Covid-19 cases increase significantly in Batang Regency since it was first identified on April 4, 2020 until nowadays. The efforts and strategies have taken by the government to reduce the rate of Covid-19, but have not shown significant results. There has increased 1.125 cases in Batang Regency on December 2020. This study aimed was analyzed by spatio temporal approach of the Covid-19 case and determine the distribution pattern of the Covid-19 in Batang Regency. Methods: This type of research was an observational research with a spatiotemporal explanatory research design. Data analysis for spatial autocorrelation were performed using Moran's index and location quotient (LQ) index. The research data were obtained from the Batang Regency Health Office. The sample in this study were 248 villages in Batang Regency.Result and discussion:The results showed that as many as 209 villages (84.3%) were identified cases , and 39 villages (15.7%) had no identified cases of the Covid-19. The results of the moran's index showed that the pattern of the Covid-19 incidence which has a significant spatial correlation in 248 villages with p value <0.01 and Z-score> 2.58. The results of the Location Quotient (LQ) index shows that 78 villages (31.4%) in Batang Regency having high level of the Covid-19 concentration (LQ> 1). Conclusion: The distribution pattern of Covid-19 shows a change in pattern from random to clustered. Spatio-temporal analysis of Covid-19 cases shows an increase in the number and areas of cases.

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ABSTRACT   Carbon Monoxide (CO) produced from smoke by cigarettes has a certain level that accumulates indoors and affects indoor air quality. The purpose of this study was to see how effective the method of air stripping in reducing CO gas concentration by using activated carbon, silica sand, and zeolite media in the experimental room which has a volume of 1000 litters. This research was performed in the laboratory by using pre-experiment random group design. The independent variables of this study include activated carbon, zeolite, and silica sand as adsorbent, while the dependent variable of this study was carbon monoxide concentration. The test was carried out by measuring the accumulation of CO gas from burning cigarette, and subsequent testing with air stripping test treatment by using the varies adsorbent on 30 minutes. From the test results obtained the highest percentage reduction of CO concentration, which was 50.89% by using the activated carbon adsorbent medium, and the lowest percentage of CO reduction was 5.85% by using silica sand adsorbent medium. The difference of CO gas concentration was significant after passing air stripping process by using zeolite media, activated carbon and silica sand with significance level p value = 0.0001. There were significant differences in the ability of zeolite, activated carbon and silica sand to reduce CO concentration, with p value = 0.0001.   Keywords: Carbon Monoxide Concentration, Air Stripping, Adsorption, Activated Carbon, Zeolite, Silica Sand   ABSTRAK   Karbon Monoksida (CO) yang dihasilkan dari asap oleh rokok memiliki kadar tertentu yang terakumulasi di dalam ruangan dan mempengaruhi kualitas udara dalam ruangan. Tujuan dari penelitian ini adalah untuk melihat seberapa besar efektivitas metode air stripping dalam menurunkan konsentrasi gas CO dengan  menggunakan media karbon aktif, pasir silika dan pasir zeolit di dalam ruangan percobaan yang memiliki volume 1000 liter. Penelitian ini merupakan penelitian yang dilakukan di dalam laboratorium dengan menggunakan pre-eksperimen desain kelompok acak. Variabel bebas dari penelitian ini meliputi karbon aktif, pasir zeolite dan pasir silika sebagai adsorben, sedangkan variabel terikat dari penelitian ini konsentrasi karbon monoksida.. Pengujian dilakukan dengan mengukur akumulasi gas CO dari pembakaran rokok, dan pengujian berikutnya dengan perlakuan uji air stripping menggunakan adsorben yang berbeda-beda dengan waktu pengujian selama 30 menit. Dari hasil uji didapatkan persentase penurunan konsentrasi CO tertinggi, yaitu 50,89 % dengan menggunakan media adsorben karbon aktif, dan persentase penurunan CO terendah yaitu 5,85% dengan menggunakan media adsorben pasir silika. Perbedaan konsentrasi gas CO yang signifikan setelah melalui proses air stripping dengan menggunakan media zeolit, karbon aktif dan pasir silika dengan taraf signifikasi nilai p = 0,0001. Ada perbedaan nilai yang signifikan terhadap kemampuan media zeolit, karbon aktif dan pasir silika dalam menurunkan konsentrasi CO, dengan nilai p = 0,0001.   Kata kunci : Konsentrasi Karbon Monoksida, Air Stripping, Adsorbsi, Karbon aktif, Zeolit, pasir silika

Water has important roles for the life of all creatures. Semarang State University (UNNES) campuses use water sources to daily needs and housekeeping which enable water to get into the body accidentally and possible to contaminate, which can trigger health and aesthetic problems. The water sources used are drilled and dug wells. This research was conducted in order to know the quality of water source around UNNES, to make sure safety water consumed for academic community. This research purpose is to know the water quality based on physical, chemical and biological parameter. This method research is observational study with survey, field observation, and laboratory analysis on process collecting data. The result shows that the water physical quality meets the quality principal standards determined. The result of the chemical parameter, the high amount of Fe and Mn at some of sample locations is affected by the ground structure conditions. The result of the biological parameter shows that the MPN and fecal coliform in most of the clean water sources exceeds the quality principal standards determined. Based on function, the water sources in UNNES campuses are used for hygienic sanitation, water processing or water treatment have to be done first before use.

Bencana alam merupakan acaman besar bagi Indonesia. Selama  tahun 2020,  dilaporkan terjadi bencana sejumlah 2.939 kejadian di Indonesia. Kabupaten Magelang merupakan salah satu wilayah di provinsi Jawa Tengah yang memiliki tingkat risiko bencana yang tinggi. Kabupaten Magelang juga berada pada sesar tektonik yang berpotensi terjadi gempa bumi. Selain itu, aspek iklim juga menjadi ancaman bencana, pasalnya curah hujan yang dibarengi oleh aktivitas vulkanik maupun tektonik dapat memicu bencana tanah longsor dan banjir. Pengembangan Desa Tangguh Bencana (DESTANA) dapat dijadikan sebagai upaya pengurangan risiko bencana dengan berbasis pemberdayaan masyarakat. Kegiatan pengembangan DESTANA ini bertujuan untuk: 1). Menggambarkan risiko bencana di Kabupaten Magelang, 2). Menggambarkan kondisi masyarakat Kabupaten Magelang dalam Kesiapsiagaan Penanggulangan Bencana, 3). Mengembangkan model desa tangguh bencana dengan pendekatan Participatory Action Research di Kabupaten Magelang. Dalam implementasinya, program ini bekerjasama dengan Perkumpulan Keluarga Berencana Indonesia (PKBI) dan Badan Penanggulangan Bencana Daerah (BPBD) Kabupaten Magelang. Temuan penelitian menginformasikan pengembangan model DESTANA dalam upaya manajemen dan pengurangan risiko bencana di Kabupaten Magelang. Konsisten dengan pendekatan participatory action research, mereka yang paling berisiko terdampak bencana akan dilibatkan dalam semua fase penelitian termasuk desain awal, pengembangan penelitian alat dan proses, pengumpulan dan analisis data, desain dan implementasi intervensi, dan penyusunan program.