Abstrak: Pekerjaan pengelasan memiliki berbagai bahaya yang kompleks, termasukbahaya sinar ultraviolet B. Dampak bahaya adalah Merusak mata dan kulitpada tubuh pekerja, (Winiarto et al. 2013). Menurut American WeldingSociety, efek akut dari paparan ultraviolet (UV) cahaya meliputiphotokeratitis. Penelitian ini pada 52 Operator las bengkel resmi disepanjang Jalan Raya Setu Bantar Gebang, Mustika Jaya Kota Bekasi,menemukan 39 operator dengan kasus photokeratitis (75% dari populasi).Penelitian ini dilakukan dengan menggunakan metoda survei dan datadikumpulkan secara cross sectional. Survei dilakukan dengan menggunakankuesioner, observasi dan wawancara serta pemeriksaan visual yangdilakukan seorang dokter untuk mengetahui responden mengalamiphotokeratitis. Pengukuran radiasi menggunakan UV Light Meter UV-Bdilakukan untuk mengetahui tingkat sinar UV-B yang memajan operatorpengelasan. Salah satu faktor yang kuat terkait dengan kasus ini intensitastinggi UV-B radiasi dengan rata-rata 99,2 μW/cm2. Faktor-faktor lainseperti umur, tahun bekerja, waktu paparan dan jarak ke sumber pengelasantelah menunjukkan hubungan yang signifikan juga, namun penggunaanAPD tidak memiliki hubungan yang signifikan untuk kasus photokeratitis.
Kata kunci : Photokeratitis, radiasi Ultraviolet-B, pengelasan.

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Welding work has a complex variety of hazards, including the dangers ofultraviolet rays B. Impact of danger is damaging to eyes and skin on thebody of workers, (Winiarto et al. 2013). According to the AmericanWelding Society, the acute effects of exposure to ultraviolet (UV) lightcovers photokeratitis. This research on welding operator 52 authorizedworkshops along Jalan Raya Setu Bantar Gebang, Mustika Jaya Bekasi,found the 39 carriers with photokeratitis cases (75% of the population). Thisresearch was conducted using the method of survey and data collected bycross sectional. The survey was conducted using questionnaires, observationand interviews and conducted a visual inspection to determine therespondent experienced photokeratitis. UV radiation measurements usingUV-B Light Meter conducted to determine the level of UV-B rays whichexposes the welding operator. One factor that is strongly linked to the caseof high-intensity UV-B radiation with an average of 99.2 μW / cm2. Otherfactors such as age, years of work, the exposure time and distance to thesource of welding have shown a significant relationship as well, but the useof PPE does not have a significant relationship to the case photokeratitis.
Key Words : Photocheratities, Ultraviolet-B radiation, Welding.

Abstrak:

ABSTRAK Bahaya radiasi Ultraviolet-B di tempat kerja yang dihasilkan oleh proses pengelasan merupakan salah satu faktor yang dapat menyebabkan terjadinya gangguan kesehatan dan penyakit akibat kerja pada pekerja PT. Jaya Asiatic Shipayrd Indonesia ? Batam, yang mana dalam proses produksinya melakukan proses pengelasan dalam penyambungan logam mempunyai potensi untuk terjadinya kelelahan mata pekerja las. Penelitian ini bertujuan untuk melihat apakah terjadi peningkatan keluhan kelelahan mata sebagai akibat pajanan radiasi Ultraviolet-B pada pekerja las di workshop Hull perusahaan. Faktor yang berhubungan dengan keluhan kelelahan mata yang diteliti adalah tingkat radiasi Ultraviolet-B, serta beberapa faktor yang berkaitan dengan individu yaitu umur, lama paparan dan pemakaian Alat Pelindung Diri. Penelitian ini dilakukan dengan disain deskriptif analitik dengan pendekatan cross sectional untuk menemukan fakta dengan interpretasi yang tepat dan akurat melukiskan gejala-gejala kelelahan mata pada kelompok atau individu pekerja las. Pengumpulan data dilakukan dengan mengukur tingkat radiasi Ultraviolet-B memapar pekerja las, serta mendapatkan data umur, lama paparan, dan pemakaian Alat Pelindung Diri melalui kuesioner. Dari hasil penelitian diketahui bahwa 90% pekerja las di workshop Hull mengalami keluhan kelelahan mata. Setelah dilakukan analisis data, ternyata keseluruhan pekerja las terpapar dengan tingkat radiasi yang dihasilkan oleh proses pengelasan yang melebihi nilai ambang batas. Analisis hubungan antara faktor-faktor yang mempengaruhi keluhan kelelahan mata pekerja ternyata tidak terlihat adanya hubungan. Dari penelitian ini dapat disimpulkan bahwa dari hasil pengukuran radiasi Ultraviolet-B di workshop Hull melebihi nilai ambang batas yang diperbolehkan berdasarkan PERMENAKERTRANS No. PER.13/MEN/X/2012. Bagi peneliti lain yang ingin melihat faktor-faktor yang mempengaruhi keluhan kelelahan mata pekerja las, perlu mempertimbangkan adanya populasi kontrol.

ABSTRACT Ultraviolet-B radiation hazards in the workplace is a factor that caused of health effect and occupational disease on the workers of PT. Jaya Asiatic Shipayrd Indonesia - Batam, where in the process of their production conducting welding to connect metal, has the potential for eye fatigue of the welders. This study aims to determine whether there is an increase in eye fatigue complaints as a result of UV-B radiation exposure to welder in Hull Workshop. Factor associated with complaints of eye fatigue studied is Ultraviolet-B radiation levels, as well as a number of factors relating to the individual, namely age, duration of exposure, and usage of Personal Protective Equipment. The research was done by analytical descriptive design with cross sectional approach to find the facts to the proper interpretation and accurately describe the symptoms of eye fatigue on the individual or group of welder. Data collection was performed by measuring the levels of UV-B radiation exposed welders, as well as getting the data on age, duration of exposure and the use of Personal Protective Equipment through questionnaires. The survey results revealed that 90% of workers in the Hull welding workshop complaint of eye fatigue. After analyzing the data, it turns out that the whole welders were exposed to radiation levels generated by the welding process that exceeds a threshold limit value. Analysis of the relationship between the factors that affect workers' complaints eyes fatigue was not visible. From this study it can be concluded that the measurement of UV-B radiation in Hull workshop exceeds the threshold limit value allowed by PERMENAKERTRANS No. PER.13/MEN/X/2012. For other researchers who want to look at the factors that affect welders complaints eye fatigue, needs to consider the control population.;Ultraviolet-B radiation hazards in the workplace is a factor that caused of health effect and occupational disease on the workers of PT. Jaya Asiatic Shipayrd Indonesia - Batam, where in the process of their production conducting welding to connect metal, has the potential for eye fatigue of the welders. This study aims to determine whether there is an increase in eye fatigue complaints as a result of UV-B radiation exposure to welder in Hull Workshop. Factor associated with complaints of eye fatigue studied is Ultraviolet-B radiation levels, as well as a number of factors relating to the individual, namely age, duration of exposure, and usage of Personal Protective Equipment. The research was done by analytical descriptive design with cross sectional approach to find the facts to the proper interpretation and accurately describe the symptoms of eye fatigue on the individual or group of welder. Data collection was performed by measuring the levels of UV-B radiation exposed welders, as well as getting the data on age, duration of exposure and the use of Personal Protective Equipment through questionnaires. The survey results revealed that 90% of workers in the Hull welding workshop complaint of eye fatigue. After analyzing the data, it turns out that the whole welders were exposed to radiation levels generated by the welding process that exceeds a threshold limit value. Analysis of the relationship between the factors that affect workers' complaints eyes fatigue was not visible. From this study it can be concluded that the measurement of UV-B radiation in Hull workshop exceeds the threshold limit value allowed by PERMENAKERTRANS No. PER.13/MEN/X/2012. For other researchers who want to look at the factors that affect welders complaints eye fatigue, needs to consider the control population., Ultraviolet-B radiation hazards in the workplace is a factor that caused of health effect and occupational disease on the workers of PT. Jaya Asiatic Shipayrd Indonesia - Batam, where in the process of their production conducting welding to connect metal, has the potential for eye fatigue of the welders. This study aims to determine whether there is an increase in eye fatigue complaints as a result of UV-B radiation exposure to welder in Hull Workshop. Factor associated with complaints of eye fatigue studied is Ultraviolet-B radiation levels, as well as a number of factors relating to the individual, namely age, duration of exposure, and usage of Personal Protective Equipment. The research was done by analytical descriptive design with cross sectional approach to find the facts to the proper interpretation and accurately describe the symptoms of eye fatigue on the individual or group of welder. Data collection was performed by measuring the levels of UV-B radiation exposed welders, as well as getting the data on age, duration of exposure and the use of Personal Protective Equipment through questionnaires. The survey results revealed that 90% of workers in the Hull welding workshop complaint of eye fatigue. After analyzing the data, it turns out that the whole welders were exposed to radiation levels generated by the welding process that exceeds a threshold limit value. Analysis of the relationship between the factors that affect workers' complaints eyes fatigue was not visible. From this study it can be concluded that the measurement of UV-B radiation in Hull workshop exceeds the threshold limit value allowed by PERMENAKERTRANS No. PER.13/MEN/X/2012. For other researchers who want to look at the factors that affect welders complaints eye fatigue, needs to consider the control population.]

Abstrak: Observational studies suggest that people with a high serum 25-hydroxyvitamin D (25(OH)D) concentration may have reduced risk of chronic diseases such as osteoporosis, multiple sclerosis, type 1 diabetes, cardiovascular disease, and some cancers. The AusD Study (A Quantitative Assessment of Solar UV Exposure for Vitamin D Synthesis in Australian Adults) was conducted to clarify the relationships between ultraviolet (UV) radiation exposure, dietary intake of vitamin D, and serum 25(OH)D concentration among Australian adults residing in Townsville (19.3°S), Brisbane (27.5°S), Canberra (35.3°S), and Hobart (42.8°S). Participants aged 18-75 years were recruited from the Australian Electoral Roll between 2009 and 2010. Measurements were made of height, weight, waist:hip ratio, skin, hair, and eye color, blood pressure, and grip strength. Participants completed a questionnaire on sun exposure and vitamin D intake, together with 10 days of personal UV dosimetry and an associated sun-exposure and physical-activity diary that was temporally linked to a blood test for measurement of 25(OH)D concentration. Ambient solar UV radiation was also monitored at all study sites. We collected comprehensive, high-quality data from 1,002 participants (459 males, 543 females) assessed simultaneously across a range of latitudes and through all seasons. Here we describe the scientific and methodological issues considered in designing the AusD Study.

Abstrak: Latar Belakang: Penelitian ini bertujuan untuk mengetahui waktu yang efektif dalam menurunkan kadar total coliform dengan menggunakan sinar ultraviolet pada air limbah terolah di outlet Instalasi Pengolahan Air Limbah Puskesmas X Jakarta Tahun 2022.
Metode: Penelitian ini menggunakan metode penelitian kuantitatif dengan desain studi eksperimen. Jumlah sampel penelitian ini sebanyak 64 sampel air limbah terolah pada outlet di Instalasi Pengolahan Air Limbah Puksesmas X Jakarta. Data kadar total coliform didapatkan dari hasil pemeriksaaan sampel di laboratorium terakreditasi. Sinar ultraviolet menggunakan lampu TL UVC merk Philips dengan daya 15 watt.
Hasil: Berdasarkan rata-rata persentase penurunan kadar Total Coliform pada sampel setelah mendapatkan perlakuan dengan sinar ultarviolet setelah 2 menit sebesar 10%, setelah 4 menit sebesar 21,25%, setelah 6 menit sebesar 26,75%, setelah 8 menit sebesar 42,5%, setelah 10 menit sebesar 58,75%. Persentase penurunan total coliform setelah 10 menit penyinaran memiliki efektifitas yang paling tinggi. Dari uji korelasi diketahui bahwa ada hubungan yang kuat antara lama penyinaran ultraviolet dengan penurunan total Coliform.

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Background: This study aims to determine the effective time to reduce total coliform levels by using ultraviolet light in treated wastewater at the outlet of the Wastewater Treatment Plant of Health Center X in Jakarta in 2022.
Methods: This research uses quantitative research methods with an experimental study design. The number of samples in this study were 64 samples of treated wastewater at the outlets of the Wastewater Treatment Plant of Public Health Center X Jakarta. Data on total coliform levels were obtained from the results of examination of samples in an accredited laboratory. Ultraviolet light using Philips brand TL UVC lamp with 15 watts of power.
Results: Based on the average percentage decrease in Total Coliform levels in the sample after receiving treatment with ultraviolet light after 2 minutes by 10%, after 4 minutes by 21.25%, after 6 minutes by 26.75%, after 8 minutes by 42.5 %, after 10 minutes of 58.75%. The percentage of total coliform decrease after 10 minutes of irradiation had the highest effectiveness. From the correlation test, it is known that there is a strong relationship between the duration of ultraviolet irradiation and the decrease in total Coliform.

Abstrak: The incidences of malignant melanoma in situ (MMIS) and invasive malignant melanoma are rising in the United States, but few studies have examined risk factors for MMIS. We evaluated the risk of MMIS according to the host phenotype and the ultraviolet index of the state of residence. Prospective data were collected via biennial questionnaires from 250,151 women and men aged ≥20 years in the Nurses' Health Study (1980-2008), the Nurses' Health Study 2 (1989-2009), and the Health Professionals Follow-up Study (1986-2008). During 7,144,820 person-years of follow-up, 888 incident MMIS lesions occurred, representing 33% of all incident malignant melanoma. Meta-analysis across the cohorts demonstrated that the presence of multiple nevi on the extremities conferred the highest relative risk for MMIS (relative risk = 3.18, 95% confidence interval: 2.59, 3.90). Family history of melanoma, number of severe sunburns, sunburn susceptibility, hair color, and Fitzpatrick skin types I, II, and III were significantly associated with an increased risk of MMIS. Conversely, the ultraviolet index of the state of residence at birth, at age 15 years, and at age 30 years was not associated with increased risk of MMIS. Continued study of MMIS and associated risk factors will help identify persons who are most at risk and elucidate the role of MMIS within the spectrum of cutaneous melanoma.