Sawitri, Niken
Indonesian Pediatric Society

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Effect of particulate matter (PM 10) pollutant concentration on peak expiratory flow rate score in junior high school students Sawitri, Niken; Rosmajudi, Oma; Subardja, Dedi; D N, Heda Melinda
Paediatrica Indonesiana Vol 43 No 2 (2003): March 2003
Publisher : Indonesian Pediatric Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.942 KB) | DOI: 10.14238/pi43.2.2003.66-9

Abstract

Background Various pollutants especially particulate matter withdiameter of 10 micrometer or less (PM 10) reduce the function oflung. However, its effect to peak expiratory flow rate (PEFR) as aparameter of central airway resistance is still inconsistent.Objective This study was designed to assess the impact of differ-ent PM 10 concentration to PEFR score among junior high schoolstudents who live in two areas.Methods It was a descriptive analytical study with cross sectionaldesign to junior high school students who lived in areas with highPM 10 i.e, Cililin sub district (252.63 mg/m 3 /h) and low PM 10 i.e.,Paseh sub district (27.15 mg/m 3 /h). PEFR was measured by usingMini Wright Peak Flow Meter and body weight by microtoire. Dataof indoor pollutants were collected from questionnaires.Results There were 463 subjects, 242 students in Cililin and 221students in Paseh, who fulfilled the inclusion criteria which wereaged 12 –15 years, living more than one years continuously withinradius of 5 km from the location of pollutant measurement, nonsmokers, and considered “health” according to history taking andphysical examination. The PEFR score in Cililin (305.9+57.9 l/min)was significantly lower than that in Paseh (327.7+54.8 l/min (t=4.15;p<0.001)).Conclusion Although the influence of indoor pollutants especiallycooking stoves could not be ignored, the difference of PEFR scorein these two groups were possibly due to the different concentra-tion of PM 10
Diversity and Preference of Habitat Violin Crabs in Mangrove Areas Pancer Cengkrong Trenggalek Regency, East Java Sawitri, Niken; Sunarto, Sunarto; Setyono, Prabang
Jurnal Ilmu Lingkungan Vol 17, No 1 (2019): April 2019
Publisher : Program Studi Ilmu Lingkungan,Program Pascasarjana, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.17.1.82-89

Abstract

ABSTRAKMangrove merupakan suatu ekosistem yang khas dan menjadi sumber daya alam yang sangat berperan penting dalam keberlangsungan makhluk hidup. Salah satunya melibatkan faktor lingkungan perairan mangrove yang dapat menyebabkan kesuburan diperairan sehingga banyak ditemukannya biota air yang hidup di kawasan tersebut, salah satunya adalah kepiting biola. Tujuan penelitian ini ialah untuk mengetahui keanekaragaman kepiting biola yang hidup di kawasan mangrove Pancer. Penelitian ini dilaksanakan pada bulan November-Desember 2017 di mangrove Pancer Cengkrong Kabupaten Trenggalek, Jawa timur. Dari penelitian ini ditemukan 7 jenis kepiting biola, yaitu Uca rosea, U.annulipes, U.forcipata, U.crassipes, U.vomeris, U.lactea dan U.paradussumieri. Tujuh spesies kepiting biola menempati beberapa tipe habitat yaitu, substart berpasir, substrat berlumpur, berlumpur dan berpasir, sekitar akar mangrove, serta akar mangrove yang berpasir. Indeks keanekaragaman kepiting biola di kawasan mangrove bagian stasiun 1 (3,4) tergolong tinggi, stasiun 2 (1,8), dan stasiun 3 (1,3) tergolong sedang. Kondisi lingkungan yang ada di seluruh stasiun relatif baik untuk kehidupan vegetasi mangrove dan kepiting biola. Kondisi tersebut ialah pH 7-9, suhu 27-31, salinitas 21,6 ppt, oksigen terlarut 5,5-8 mg/L, dan substrat lumpur berpasir. Kesimpulan dari penelitian ini ialah kerapatan vegetasi mangrove sangat berkaitan dengan kelimpahan jenis (kepadatan) kepiting biola serta banyaknya spesies di dalam suatu komunitas akan mempengaruhi keanekaragaman ekosistem yang ada di kawasan mangrove Pancer. Kata kunci : Kepiting biola, mangrove, keanekaragaman, TrenggalekABSTRACTMangroves are a unique ecosystem and become a natural resource that plays an important role in the survival of living things. One of them involves the environmental factors of mangrove waters that can cause fertility in the waters so that many aquatic biota are found in the area, one of which is a violin crab. The purpose of this study was to determine the diversity of violin crabs that live in the Pancer mangrove area. This research was carried out in November to Desember 2017 in the mangrove Pancer Cengkrong Trenggalek Regency, East Java. The results found seven types of violin crabs, namely Uca rosea, U.annulipes, U.forcipata, U.crassipes, U.vomeris, U.lactea and U.paradussumieri. seven species of violin crabs occupy several types of habitats, namely sandy substrates, muddy substrate, muddy and sandy, around mangrove roots, and sandy mangrove roots. Diversity index of violin crabs in the station 1 (3,4) mangrove area classified as high, station 2 (1,8), and station 2 (1,3) classified as medium. The environmental conditions in al stations are relatively good for the life of mangrove vegetation and violin crabs. These conditions are pH 7-9, temperature 27-32, salinity 21.6 ppt, dissolved oxygen 5.5-8 mg/L, and sandy mud substrate. The conclusion of this study is that mangrove vegetation density is closely related to the abundance of species (density) of violin crabs and the number of species in a community will affect the diversity of ecosystems in the Pancer mangrove area.Keywords: Violin Crab, Mangrove, Diversity, Trenggalek