{"title":"Efek Kombinasi Tanaman Dengan Variasi Konsentrasi Terhadap Mortalitas Larva Culex sp. (Diptera: Culicidae)","authors":"Mei Ahyanti, Prayudhy Yushananta","doi":"10.26630/rj.v18i1.4455","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4455","url":null,"abstract":"After understanding the negative impacts of the long-term use of synthetic chemical insecticides, botanical insecticides are the best choice for controlling disease vector mosquitoes. The research aims to evaluate the larvicidal effect of a combination of four plant types on Culex sp. The study used a completely randomized factorial design (with two replications) from March – July 2023. Four types of plants ( Catharanthus roseus, Annona muricata, Psidium guajava , and Averrhoa bilimbi ) were combined in pairs with concentrations of the stratified mixture and observed for 24 hours. Plant extraction by maceration using Ethanol (24 hours), evaporated until concentrated, and diluted with distilled water to the desired concentration. Culex sp. larvae reared from the egg phase to the first filial (F1). Twenty larvae (instar-III) were used in each test, with controls. Data were analyzed using two-way ANOVA (Confidence Level = 95%). Research found that A. muricata, P. guajava , and A. bilimbi leaf extracts (single or in pairs) caused mortality (5-20%) of Culex sp. larvae. after one hour of exposure. At six hours of exposure, A. muricata and P. guajava caused mortality up to 70%. Larval mortality reached 100% after 24 hours of exposure. The statistical analysis results did not show differences in larval mortality based on plant type (P = 0.084) and mixture concentration (P = 0.858). However, it significantly differed based on exposure time (P = 0.0001). Of the four examined, two plants showed the best larvicidal effect against Culex sp., namely A. muricata and P. guajava . Even though it shows promising results, using high concentrations is still an obstacle to application. Bioactive compound engineering is suggested to increase bio-larvicide activity.","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"60 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arsita Nur Rizkia Putri, Ilma Fadlilah, Oto Prasadi
{"title":"Pemanfaatan Zeolit-A Sebagai Adsorben Logam Berat Kromium Total (Cr) Pada Limbah Cair Sisa Analisis Chemical Oxygen Demand (COD)","authors":"Arsita Nur Rizkia Putri, Ilma Fadlilah, Oto Prasadi","doi":"10.26630/rj.v18i1.4424","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4424","url":null,"abstract":"","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141807366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Zamzami, A. Munandar, Rifka Noor Azizah, A. Info
{"title":"Studi Kualitas Air Minum dan Pengolahannya di Depot Air Minum Isi Ulang Kota Bandar Lampung (Studi Kasus: Kecamatan Tanjung Karang Timur, Bumi Waras, dan Way Halim)","authors":"M. Zamzami, A. Munandar, Rifka Noor Azizah, A. Info","doi":"10.26630/rj.v18i1.4419","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4419","url":null,"abstract":"Pengolahan air yang tidak efektif berdampak pada kualitas air minum dan membahayakan kesehatan konsumen. Penelitian bertujuan untuk menganalisis kualitas dan pengolahan air minum pada depot air minum isi ulang di Kota Bandar Lampung. Penelitian menggunakan desain studi kasus yang dilakukan pada bulan Oktober 2023 hingga Januari 2024 di tiga kecamatan. Empat depot dipilih secara acak dari setiap kecamatan (N = 23 depo). Observasi dilakukan di setiap depot untuk mengetahui cara pengolahan air minum. Pemeriksaan kualitas air dilakukan terhadap empat parameter yaitu Fe (spectrophotometry), TDS (gravimetry), DHL (ISTA), dan pH. Seluruh data dianalisis secara deskriptif dan dibandingkan dengan peraturan yang berlaku. Hasil pemeriksaan kualitas air menunjukkan nilai TDS berkisar antara 5,0-525,0 mg/L (air minum) dan 90,0-265,0 mg/L (air baku); DHL berkisar antara 10,1- 370,2 ?S/cm dan 171,8- 390,1 ?S/cm; pH pada kisaran 5,4-7,1 dan 5,3-7,2; sedangkan Fe tertinggi sebesar 0,06 mg/L dan 0,03 mg/L. Satu sampel air minum tidak memenuhi persyaratan parameter TDS, dan 18 sampel bersifat asam (pH 6,5). Mayoritas (82,6%) depot telah beroperasi lebih dari tiga tahun, mengolah air sumur bor dalam (78,3%), dan mencuci tempat penampungan air baku lebih dari sebulan (69,7%). Semua depot tidak melakukan backwash setiap hari. Sebagian besar mengganti media filter setiap lebih dari enam bulan (82,6%), sedangkan membran filter setiap bulan (87,0%). Terdapat satu sampel air minum yang tidak memenuhi syarat TDS (525 mg/L), dan 18 sampel bersifat asam (pH 6,5). Hal ini dipengaruhi oleh rutinitas pencucian dan penggantian filter, serta penggunaan air tanah dalam.","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"63 26","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sri Haryanti, Narto Narto, S. Sugianto, S. Muryani
{"title":"Efektivitas Buku Saku Higiene dan Sanitasi Makanan Untuk Meningkatkan Pengetahuan dan Praktik Keamanan Makanan","authors":"Sri Haryanti, Narto Narto, S. Sugianto, S. Muryani","doi":"10.26630/rj.v18i1.4264","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4264","url":null,"abstract":",","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"63 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hubungan Intensitas Radiasi Ultraviolet, Jarak Pengelasan, dan Karakteristik Pekerja Dengan Gejala Konjungtivitis Fotoelektrik Pada Pekerja Bengkel Las di Kota Bukittinggi","authors":"Zetta Zhafira, Muchsin Riviwanto, Awalia Gusti","doi":"10.26630/rj.v18i1.4130","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4130","url":null,"abstract":"Conjunctivitis is inflammation of the conjunctiva caused by viruses, bacteria, and ultraviolet radiation (usually called photoelectric conjunctivitis). One job related to ultraviolet radiation with a high risk of causing photoelectric conjunctivitis is welding, especially electric welding. The study aims to analyze the risk of photoelectric conjunctivitis in welding workshop workers. The study used a cross-sectional design with 49 respondents in Bukittinggi City in December-May 2023. Data collection used questionnaires, observation, and measurement. All data were analyzed using Fisher's Exact test at a confidence level of 95%. The study found that most respondents experienced symptoms of severe photoelectric conjunctivitis (87.8%) and were exposed to high-intensity ultraviolet radiation (53.1%). The majority of respondents were in the young age group (71.4%), exposed to more than 2 hours a day (85.7%), had worked for more than five years (71.4%), and worked at close welding distances (59, 2%). The study also found a significant relationship between symptoms of photoelectric conjunctivitis and the intensity of ultraviolet radiation (P= 0.007), welding alcohol (P= 0.035), length of exposure (p= 0.002), and work period (P= 0.048). Personal protection and eye health checks are highly recommended at work","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Frangipani Flower Extract (Plumeria acuminata L.) Against the Mortality of Aedes aegypti Larvae","authors":"Eka Lidya, P. Yushananta","doi":"10.26630/rj.v18i1.4513","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4513","url":null,"abstract":"Bioinsecticide development has become a demand after the adverse effects of long-term use of synthetic chemical insecticides, including vector resistance and environmental pollution. In particular, this study investigated the ability of Frangipani flower extract ( Plumeria acuminata L.) as larvacidal against Aedes aegypti instar III. The study used a Factorial Completely Randomized Design (two replications), conducted on March-May 2023. Plant extraction by maceration using 96% ethanol solvent. Bioassay tests were carried out at three concentration levels (5%, 7%, 10%) and four levels of contact time (6, 12, 18, 24 hours), with 25 larvae in each treatment. Spectrophotometry methods measured flavonoid and saponin content. The two-way ANOVA test analyzed data, the Tukey test, and the probit test to obtain LC 50 and LC 90 . The study found flavonoid and saponin content of 4.43 Mg QE/g and 2.45%, respectively. The lowest total mortality (24 hours after exposure) of Aedes aegypti larvae was at a concentration of 5% (MR= 58%) and highest at concentrations of 7% and 10% (MR= 100%). The 7% concentration is the best performance as a larvicide. Statistical analysis showed differences in mortality based on concentration (P = 0.0001) and contact time (P = 0.0001). Mortality of larvae was caused by damage to the respiratory and digestive systems, as seen from the lateral hair, siphon, and abdomen condition. The results of the probit test obtained LC 50 and LC 90 of 4.85% (4.36 – 5.10%) and 5.86% (5.49-7.20%), respectively. The study has proven that Plumeria acuminata L. flower extract has the potential as a biolarvaside against Aedes aegypti , with a mortality effect reaching 100% after 24 hours of exposure.","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"15 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hubungan Higiene Perorangan dan Sanitasi Lingkungan Dengan Kejadian Diare Pada Balita di Kelurahan Mekarjaya, Kota Depok","authors":"Sekar Komala, Rismawati Pangestika","doi":"10.26630/rj.v18i1.4461","DOIUrl":"https://doi.org/10.26630/rj.v18i1.4461","url":null,"abstract":",","PeriodicalId":487147,"journal":{"name":"Ruwa Jurai: Jurnal Kesehatan Lingkungan","volume":"61 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141807213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}