scholarly journals Analisis Kandungan Merkuri Pada Tanah Dan Umbi Tanaman Ubi Kayu (Manihot Esculenta Crantz) Di Daerah Pertambangan Desa Soyowan, Minahasa Tenggara

Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 227
Author(s):  
Ifanayanti Ali ◽  
Sendy B. Rondonuwu ◽  
Farha N. J. Dapas
Keyword(s):  
Heavy Metals ◽  
Random Sampling ◽  
Manihot Esculenta ◽  
Sampling Method ◽  
Mining Area ◽  
Mercury Content ◽  
Manihot Esculenta Crantz ◽  
Living Things ◽  
Long Time ◽  
Concentration Threshold

Merkuri merupakan salah satu logam berat berbahaya diantara logam berat lainya seperti Timbal (Pb), Arsenik (As), Kadmium (Cd), Kromium (Cr) dan Nikel (Ni). Merkuri memiliki sifat beracun yang sangat kuat diketahui dapat terakumulasi dan tetap berada di dalam tubuh mahluk hidup dalam jangka waktu yang lama sebagai racun yang terakumukasi. Penelitian ini di lakukan untuk mengetahui kandungan merkuri pada tanah dan Umbi tanaman ubi kayu (Manihot esculenta Crantz) di daerah pertambangan Desa Soyowan Minahasa Tenggara. Dengan menggunakan Metode Purposive Random Sampling. Pengambilan sampel terbagi atas tiga stasiun dengan tiga kali ulangan. Hasil penelitian menunjukkan bahwa kandungan merkuri dalam tanah tidak terdeteksi oleh alat AAS (Atomic ansorption Spectrometry) karena kandungan merkuri pada tanah terlampau kecil, sedangkan pada sampel umbi tanaman ubi kayu memiliki kandungan merkuri yaitu 0,1414 ppm. Konsentrasi merkuri (Hg) melebihi ambang batas sehingga tanaman pada Stasiun II tidak layak lagi untuk dikonsumsiMercury is one of the heavy metals containing other heavy metals such as Lead (Pb), Arsenic (As), Cadmium (Cd), Chromium (Cr) and Nickel (Ni). Mercury has very strong and accountable characteristics and remains in living things for a long time as an educated conversation. Manihot esculenta Crantz in the Mining Area of Soyowan Village, Southeast Minahasa. By using the Purposive Random Sampling method, sampling was divided into three stations with three replications. The results showed that the mercury content in the soil could not be found by the AAS tool because the mercury content in the soil was too small, whereas the tuber samples of cassava plants had a mercury content of 0.1414 ppm. excessive mercury (Hg)  concentration threshold so plants at Station II are no longer suitable for consumption

scholarly journals Spectrometric Determination of Heavy Metals Present in Mango Fruit of Nepali Origin

2020 ◽  
Vol 1 (1) ◽  
pp. 72-77
Author(s):  
Naresh Pant ◽  
Anup Subedee ◽  
Ram Bahadur Gharti ◽  
Santu Shrestha
Keyword(s):  
Heavy Metals ◽  
Detection Limit ◽  
Quantitative Determination ◽  
Standard Method ◽  
Random Sampling ◽  
Sampling Method ◽  
Spectrometric Method ◽  
Mango Fruit ◽  
Atomic Absorption Spectrometric

Quantitative determination of heavy metals; Fe, Zn, Co, Pb and Ni in Mango fruit of Nepali origin, locally sourced was carried out. Fifteen Mango samples were collected by random sampling method, converted into analyte sample by standard method and analyzed by using Atomic absorption spectrometric method. The amount of heavy metals Fe, Zn, Co and Ni present in sample was, 0.570±0.48, 0.510±0.031, 0.431±0.021, 0.106±0.003 mg/kg respectively. The results indicated the concentration of Zn & Co were higher (WHO 0.320 & 0.05), and the concentration of Nickel (Ni) was below the maximum permissible limit issued by WHO. The concentration of the Lead (Pb) was found below the detection limit of the instrument used.

Kandungan Merkuri dalam Ikan Konsumsi di Wilayah Bantul dan Yogyakarta

2017 ◽  
Vol 2 (1) ◽  
pp. 15 ◽  
Author(s):  
Suratno Suratno ◽  
Muhammad Reza Cordova ◽  
Silke Arinda
Keyword(s):  
Heavy Metals ◽  
Eating Habits ◽  
Anthropogenic Activities ◽  
Mercury Content ◽  
The Body ◽  
The People ◽  
Low Concentrations ◽  
Saltwater Fish ◽  
Fish Samples ◽  
Long Time

<strong>Mercury Content in Commercial Fishes of Bantul Areas and Yogyakarta. </strong> Mercury Content in Commercial Fishes of Bantul Areas and Yogyakarta Fish is an important energy source for the body and has many functions for human health. Hence, the fish are highly favored for consumption by the public. However, the fish has the ability to accumulate heavy metals. One type of dangerous heavy metals and can accumulate in fish is mercury because it has high toxicity at low concentrations. The presence of contaminants from anthropogenic activities that are not processed previously, makes the fish a potential hoarder for heavy metals. This study examined the concentration of mercury in freshwater fish and saltwater fish consumed by the people of Bantul areas and Yogyakarta. Fish samples were collected on 29–30 August 2015 from Prawirotaman Market, supermarket, Embankment on the River Code, and purchased from fishermen in Depok Beach. Analysis of mercury concentrations in fish was done using mercury analyzer NIC MA-3000. The results indicated that the fish with the eating habits of benthivore and planktivore accumulated higher mercury than omninore and carnivore fish. The concentration of mercury in the fish examined does not exceed the threshold of the WHO standard, BPOM-RI, and European Union standards. However, the people need to be alert on mercury bioaccumulative properties, especially when consuming the fish having accumulated mercury continuously for a long time.

scholarly journals Heavy Metals in Cassava (Manihot esculenta Crantz) Harvested from Farmlands along Highways in Owerri, Nigeria

2020 ◽  
Vol 8 (4) ◽  
pp. 800-806
Author(s):  
Josephat Nwabueze Okereke ◽  
Judith Nkeiru Nduka ◽  
Ukaoma Augustina Adanma ◽  
Odangowei Inetiminebi Ogidi
Keyword(s):  
Heavy Metals ◽  
Manihot Esculenta ◽  
Manihot Esculenta Crantz

scholarly journals THE RELATIONSHIP BETWEEN THE INTAKE OF ANIMAL AND VEGETABLE PROTEIN AND STUNTING IN CHILDREN AGED 3-5 YEARS OLD IN PENAWANGAN VILLAGE, PRINGAPUS SUBDISTRICT, SEMARANG REGENCY

2015 ◽  
Vol 7 (16) ◽  
pp. 66-76
Author(s):  
Dwi Agnes Setiana ◽  
Sugeng Maryanto ◽  
Indri Mulyasari
Keyword(s):  
Random Sampling ◽  
Protein Intake ◽  
Vegetable Protein ◽  
Sampling Method ◽  
Animal Protein ◽  
Bivariate Analysis ◽  
Cross Sectional ◽  
Mothers And Children ◽  
Long Time ◽  
The Relationship

Stunting is one of the consequences that arises from a state of malnutrition that lasts a long time. One of the lack of nutrients is proteins. The deficit of intake of animal and vegetable protein will impact on growth. The aim of this study was known the relationship between the intake of animal and vegetable protein and stunting in children aged 3-5 years old in Penawangan Village, Pringapus Subdistrict, Semarang regency. This research was Correlational study with cross-sectional approach. The population in this study was all mothers and children aged 3-5 years old in Penawangan village, Pringapus subdistrict, Semarang regency. It obtained the samples of 64 children with proportional random sampling method. Data collecting used microtoise, bath room scales, and semi-quantitative FFQ. Bivariate analysis used spearman rho (α= 0,05). Most animal protein intake was in the category of severe deficit which was 39.1%, the category of moderate deficit which was 1.6%, the category of mild deficit which was 3.1%, the category of normal which was 37.5%, the category of over which was 18.8%. The intake of vegetable protein was mostly in the category of severe deficit which was 51.6%, the category of moderate deficit which was 32.8%, the category of mild deficit which was 14.1%, the category of normal which was 1.6%. The incidences of stunting were in 33 children (51.6%) and unstunting were in 31 children (48.4%). There was a relationship between the intake of animal protein with the incidences of stunting (p = 0.0001, r = 0.798). There was a relationship between the intake of vegetable protein with the incidences of stunting (p = 0.0001, r = 0.560). There was a relationship between the intake of animal and vegetable protein with stunting in children aged 3-5 years old in Penawangan village, Pringapus subdistrict, Semarang regency.

scholarly journals Predicting debt burden status among Malaysia civil servants

2019 ◽  
Vol 7 (3) ◽  
pp. 1
Author(s):  
Mohamad Fazli Sabri ◽  
Nuranini Abdullah ◽  
Husniyah Abdul Rahim ◽  
Mohamad Amim Othman ◽  
Ahmad Hariza Hashim
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Civil Servants ◽  
Cost Of Living ◽  
Financial Status ◽  
Debt Burden ◽  
Multi Stage ◽  
High Inflation ◽  
Income Ratio ◽  
Long Time

Under the pressure of high inflation and cost of living, concerns have arisen over the debt problem among civil servants in Malaysia. Therefore, this paper aims to investigate the determinants of debt burden status within a civil servants sample. Questionnaires were distributed using multi-stage random sampling method. A total of 600 respondents were collected. Results from logistic regression showed several significant predictors of debt burden status, namely savings to income ratio, financial status, and income adequacies. This study outlined predictors of debt burden status among Malaysian civil servants, providing civil servants some ideas to counter debt issues which have been prevalent for a long time.

scholarly journals Farming competence of farmer in peatland management: Case in Rasau Jaya Dua Village, West Kalimantan Province

2021 ◽  
Vol 914 (1) ◽  
pp. 012007
Author(s):  
Sanudin ◽  
T S Widyaningsih ◽  
E Fauziyah
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Local Community ◽  
Simple Random Sampling ◽  
Primary Data ◽  
West Kalimantan ◽  
High Productivity ◽  
Competence Level ◽  
Long Time ◽  
Selection Of

Abstract The local community has managed peatlands for a long time with various commodities and levels of management. The success of farming in peatland requires the seriousness of farmers and proper land management to produce peatland’s high productivity and sustainability, including farmer’s competence. The research aims to analyze farmers’ competence in peatland farming and identify factors that influence farmers’ competence in peatland management. The research was conducted from August to October 2017 in Rasau Jaya Dua Village, Kubu Raya District, West Kalimantan. The selection of 48 respondents was made by a simple random sampling method. Primary data, including characteristics of respondents and farmer’s competence in peatland management, were collected through interviews using questionnaires and field observations. Data were analyzed qualitatively and quantitatively using the correlation test of Rank Spearman. The results showed that the farmers’ competence level in peatland farming in Rasau Jaya Dua Village was moderate. Factors that must be considered to develop the farming competence in peatland are age, motivation, and interaction with extension workers. Increasing the farming competence of farmers in peatland management can be achieved through improving the interaction between farmers and extension workers.

scholarly journals Mercury Content on Mangrove Roots and Telescopium telescopium in Kao Bay, North Halmahera

2021 ◽  
Vol 5 (2) ◽  
pp. 73-78
Author(s):  
Moh. Fauzan Jafar Moh. Fauzan Jafar ◽  
Reni Tyas Asrining Pertiwi
Keyword(s):  
Heavy Metals ◽  
Gold Mining ◽  
Negative Impact ◽  
Mining Industry ◽  
Mining Area ◽  
Quality Standard ◽  
Mercury Content ◽  
Industry Waste ◽  
Root Absorption ◽  
Mangrove Roots

The process of extracting gold using mercury (Hg) carried out by Nusa Halmahera Minerals industries (PT. NHM) as well as by the community of illegal gold mining or gold mining without a permit (PETI) that occurs in the mining area of ​​Halmahera Island can have a negative impact on the aquatic environment. This study aims to determine the mercury absorption in mangrove roots of Rhizopora sp and Telescopium telescopium at two different stations. Sampling of mangrove roots was repeated 3 times for each station. Differences in the accumulation of heavy metals Hg in the roots of Rhizophora sp were analyzed using the T-test. The study showed that the concentration of mercury in the roots of Rhizophora sp ranged from 0.016 – 0.026 mg/kg and there were differences in root absorption between Rhizopora sp at station 1 of the Tabobo River mangrove near the PETI disposal and station 2 at the mining industry waste disposal. The concentration of mercury in Telescopium telescopium ranged from 0.08 - 0.15 mg/kg.  It is indicates that Telescopium telescopium in Kao Teluk has been contaminated with mercury but is still below the threshold of the quality standard that has been set.

scholarly journals IDENTIFICATION AND INVENTORY OF CASSAVA (Manihot esculenta Crantz) IN NORTH SUMATERA

2020 ◽  
Vol 7 (1) ◽  
pp. 53-61
Author(s):  
Emmy Harso Kardhinata ◽  
Edison Purba ◽  
Dwi Suryanto ◽  
Herla Rusmarilin
Keyword(s):  
Manihot Esculenta ◽  
Sampling Method ◽  
Morphological Characters ◽  
Yield Potential ◽  
Manihot Esculenta Crantz

The study of identification and inventory of cassava accessions was done from August to September 2014 in four districts based on their potential as a center for cassava cultivation, namely Simalungun, Serdang Bedagai, Deli Serdang, Langkat Regency representing the lowlands and Simalungun and Karo Regency representing the highlands. Each district was selected 3 subdistricts and each subdistrict was surveyed 3 villages randomly through the accidental sampling method. Guidance on identifying morphological characters was used by reference from Fukuda, et al. (2010) by giving a score for each character observed. The results of the study obtained 8 genotypes with their respective codes and local names; 1) Sawit (G1), 2) Lampung (G2), 3) Merah (G3), 4) Adira-1 (G4), 5) Kalimantan (G5), 6) Malaysia (G6), 7) Roti (G7) and 8) Klanting (G8). The most common genotype found in the location were Malaysia and Adira-1, while the rarest was Merah. The yield potential at the age of 10 months were Sawit (26,9–30,1 tons/ha), Lampung (29,6–52,6 tons/ha), Merah (54–61,6tons/ha), Adira-1 (34,8–55,0 tons/ha),  Kalimantan (15,8–64,2 tons/ha), Malaysia (32,9–64,3 tons/ha), , Roti (24,7–55,5 tons/ha), and Klanting (327,4–49,8 tons/ha).

scholarly journals PENENTUAN KANDUNGAN LOGAM BERAT PADA AIR TANAH DI KECAMATAN KUBU BABUSSALAM, ROKAN HILIR, RIAU

2020 ◽  
Vol 5 (1) ◽  
pp. 47
Author(s):  
Arief Yandra Putra ◽  
Fitri Mairizki
Keyword(s):  
Heavy Metals ◽  
Ground Water ◽  
Random Sampling ◽  
Metal Content ◽  
Hydrological Cycle ◽  
Negative Impact ◽  
Sampling Technique ◽  
Quality Standard ◽  
Measuring Instrument ◽  
Living Things

<p class="abstract"><em>Water is a material that can not be separated from the life activities of living things on earth. One of the water resources that gets the most attention and the most needed is ground water. Ground water is a hydrological cycle that involves several aspects such as bio-geo-physical and socio-cultural.</em> <em>Heavy metals are pollutants that are most often found in water. This heavy metal has a negative impact on humans who use the water and organisms that are in the water. The purpose of this study was to analyze the content of heavy metals contained in ground water in the District of Kubu Babussalam, Rokan Hilir, Riau. Sampling using random sampling technique. Ground water in Kubu Babussalam Subdistrict has been contaminated by heavy metals such as lead (Pb), copper (Cu), iron (Fe), cadmium (Cd) and chromium (Cr). The Pb content contained in ground water ranges from 0,01-0,06 mg/L, Fe ranges from 1,3-2,2 mg/L while the content of the other three metals still very little and were carried under the LOQ value of the measuring instrument used.</em> <em>Based on Permenkes 416/MEN.KES/PER/IX/1990, there was one sample point that had Pb metal content above the quality standard, and there were seven sample points that had Fe metal content above the quality standard.</em></p><p><strong><em> </em></strong></p>

scholarly journals Variations of Macro- and Microelements in Yellow-Fleshed Cassava (Manihot esculenta Crantz) Genotypes as a Function of Storage Root Portion, Harvesting Time, and Sampling Method

2020 ◽  
Vol 10 (16) ◽  
pp. 5396
Author(s):  
Emmanuel Oladeji Alamu ◽  
Busie Maziya-Dixon ◽  
Consent Sibeso ◽  
Elizabeth Parkes ◽  
Alfred Gilbert Dixon
Keyword(s):  
Manihot Esculenta ◽  
Sampling Method ◽  
Optical Emission ◽  
Field Trials ◽  
Point Of View ◽  
Emission Spectrometry ◽  
Storage Root ◽  
Manihot Esculenta Crantz ◽  
Harvesting Time ◽  
Cork Borer

The correct estimation of the mineral content of cassava (Manihot esculenta) genotypes is vital from a nutritional point of view. This study evaluated the effects of the storage root section, maturity, and sampling method on the macro- and microelements in yellow-fleshed cassava root genotypes. In total, 44 genotypes were grown in replicated field trials of 2 sets (set 25 and set 19) and were harvested at 9 and 12 months after planting. Two sampling methods, sampling with a cork borer (A = proximal, B = middle, C = distal or method 1) and sampling without a cork borer (L = Longitudinal or method 2), were used. The minerals of the samples from the two methods were determined using inductively coupled optical emission spectrometry (ICP-OES). K and Mn were the most abundant minerals, and Na, Mo, and Co were the least abundant. Genotype, method, and maturity had a strong influence on mineral concentrations. Harvesting time affected the concentration level of some macro- and microelements in cassava roots. Additionally, Ca, Mg, K, P, Mn, Cu, Ni, and Zn contents were significantly (p < 0.05) higher in the proximal and middle portions for method 1. K and P and Mn and B were positively correlated, but K and Na and Fe and Ni were negatively associated.

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