scholarly journals Biomonitoring of Toxic Metals in Feathers of Birds from North-Eastern Pakistan

2021 ◽  
Author(s):  
Bushra Aziz ◽  
Muhammad Zubair ◽  
Nausheen Irshad ◽  
Khawaja Shafique Ahmad ◽  
Majid Mahmood ◽  
...  
Keyword(s):  
Atomic Absorption ◽  
Toxic Metals ◽  
House Sparrow ◽  
Bird Species ◽  
Atomic Absorption Spectrophotometer ◽  
Common Myna ◽  
House Crow ◽  
Significant Difference ◽  
North Eastern ◽  
Azad Kashmir

AbstractThe current study was designed to determine the concentrations of toxic metals (Ni, Pb and Cr) in feathers of birds collected from four regions of NE Pakistan. Feather samples of birds (House Crow, Common Myna and House Sparrow) were collected from different areas. Atomic absorption spectrophotometer was used to determine the concentration of metals in feathers. Analysis of the data revealed that concentrations of Pb and Cr were significantly different (p < 0.05) among bird species, whereas no difference (p > 0.05) was detected among bird species (house crow, common myna and house sparrow) for Ni. A significant difference was found for the concentration of Pb and Ni in all the four studied regions. Whereas, non-significant difference was found in all the studied regions for the concentrating of Cr. It was revealed that there is significant rising concentration of metals (Pb, Cr) in feathers of birds in Azad Kashmir.

Assessment of toxic metals in raw and processed milk samples using electrothermal atomic absorption spectrophotometer

2009 ◽  
Vol 47 (9) ◽  
pp. 2163-2169 ◽  
Author(s):  
Tasneem Gul Kazi ◽  
Nusrat Jalbani ◽  
Jameel Ahmed Baig ◽  
Ghulam Abbas Kandhro ◽  
Hassan Imran Afridi ◽  
...  
Keyword(s):  
Atomic Absorption ◽  
Toxic Metals ◽  
Atomic Absorption Spectrophotometer ◽  
Milk Samples

scholarly journals Undesirable aliens: factors determining the distribution of three invasive bird species in Singapore

2003 ◽  
Vol 19 (6) ◽  
pp. 685-695 ◽  
Author(s):  
Haw Chuan Lim ◽  
Navjot S. Sodhi ◽  
Barry W. Brook ◽  
Malcom C. K. Soh
Keyword(s):  
Environmental Concern ◽  
Residential Buildings ◽  
Bird Species ◽  
Urban Greenery ◽  
Common Myna ◽  
House Crow ◽  
Population Sizes ◽  
The Common ◽  
Negative Impacts ◽  
Agricultural Areas

Biological invasions are a major environmental concern due to their negative impacts on biodiversity and economics. We determined the population sizes and habitat-abundance relationships of the three most successful invasive bird species in Singapore: the house crow Corvus splendens, white-vented myna Acridotheres javanicus and common myna A. tristis. Estimated population sizes of the three species between February 2000 and February 2001 were between 106 000-176 000, 122 000-155 000 and 20 000-29 000, respectively. Population size of the house crow grew dramatically (>30-fold) in the last 15-16 y while that of the white-vented and common myna declined. Habitat-abundance relationships suggest that house crows are highly dependent on anthropogenic food. Their abundance was also positively related to proximity to coast. The common myna associated closely with agricultural areas while the white-vented myna probably preferred urban greenery among residential buildings. Our study shows that the three invasive bird species associated with different aspects of human-modified environment.

Study into the Iron Content of Seminal Plasma in Normal and Infertile Subjects

2012 ◽  
Vol 79 (1) ◽  
pp. 54-57 ◽  
Author(s):  
KP Skandhan ◽  
BN Mazumdar ◽  
B Sumangala
Keyword(s):  
Atomic Absorption ◽  
Seminal Plasma ◽  
Iron Content ◽  
Atomic Absorption Spectrophotometer ◽  
Significant Difference

The iron content in seminal plasma of normal (n19), oligozoospermic (n11), azoospermic (n12), oligoasthenozoospermic (n19), and asthenozoospermic (n17) subjects was estimated by using atomic absorption spectrophotometer. The concentration of iron in normal seminal plasma varied from 265 to 365 mg%. The source of iron in seminal plasma seems to be the adnexal glands and not spermatozoa, as azoospermic semen also contained it. A statistically highly significant difference was seen when normal was compared with azoospermia and with asthenozoospermia. The necessary average wastage of iron through semen is calculated as 2.52 mg/day. This value is highly variable according to the seminal volume and frequency of ejaculation.

scholarly journals Concentration of Heavy Metals in Vegetables Cultivated around Dumpsites in Jimeta and Ngurore Areas, Adamawa State, Nigeria

2020 ◽  
Vol 24 (6) ◽  
pp. 1035-1040
Author(s):  
D.C. Sakiyo ◽  
G. Chessed ◽  
J. Eli ◽  
Y.J. Usongo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Metal Concentration ◽  
Lactuca Sativa ◽  
Concentration Level ◽  
Spinacia Oleracea ◽  
Limit Of Detection ◽  
Atomic Absorption Spectrophotometer ◽  
Significant Difference

The study analyses the health risk assessment of the concentration of Iron, Lead, Copper, Chromium, and Cadmium heavy metals in vegetables grown near dumpsites of Jimeta and Ngurore areas of Adamawa State, Nigeria. Vegetables mainly Spinach (Spinacia oleracea) and lettuce (Lactuca sativa) were collected in triplicates and analyzed using Atomic Absorption Spectrophotometer Buck 210VGP (AAS). The result revealed that heavy metals detected in spinach at Jimeta dumpsite decreased in the following order: Fe (3.7 mg/kg) > Pb (0.18 mg/kg) > Cu (0.12 mg/kg) > Cr (0.07 mg/kg) > Cd (below limit of detection), compared to the metal concentration in spinach at Ngorure dumpsite with lower concentration of heavy metal which decreased in the order of: Fe (2.5 mg/kg) > Pb (0.16 mg/kg) > Cu (0.14 mg/kg) > Cr (0.02 mg/kg) > Cd (below limit of detection). Other result for Spinach in Jimeta decreased in the order Fe (3.31mg/kg) > Pb (0.2mg/kg) > Cu (0.11mg/kg) > Cr (0.05mg/kg) > Cd (ND) beyond the limit of detection while Lettuce decreased in the order Fe (22.54mg/kg) > Cu (0.31mg/kg) > Pb (0.12mg/kg) > Cr (0.07mg/kg) > Cd (ND) beyond the limit of detection. Fe is the most abundant element in the vegetables with a mean value of 21 mg/kg followed by Pb (0.177 mg/kg). The analyses of paired T-test for vegetables in Ngurore and Jimeta at 0.05 level of significant confirmed that Cu and Cr showed no statistically significant difference in their concentration level while Fe and Pb confirmed that there was statistically significant difference in their concentration level. However, the detection of heavy metals in these vegetables calls for close environmental monitoring and adequate public awareness. This is necessary to discourage further pollution which could lead to high metal concentration and metal poisoning in vegetables and invariably humans that consume them. Keywords: Spinacia oleracea, Lactuca sativa, Heavy metal, Atomic Absorption Spectrophotometer

scholarly journals Levels of Toxic Metals in Skin Lightening Agents Marketed in Nigeria

2019 ◽  
Vol 16 ◽  
pp. 5375-5378
Author(s):  
Moses Olayemi Akiibinu ◽  
Olutola Bob Soile ◽  
Lilian Esther Akinade ◽  
Susan Olufunmilayo Akiibinu
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Toxic Metals ◽  
Active Agent ◽  
Developed Countries ◽  
Atomic Absorption Spectrophotometer ◽  
Toxic Heavy Metals ◽  
Local Skin ◽  
Different Types ◽  
Skin Lightening

Background: Bleaching agents produced by registered companies in developed countries have regulated concentrations. But various local skin lightening agents produced in Africa, especially Nigeria have no identified active agent. This study determined the levels of potentially toxic heavy metals constituents of bleaching agents commonly used by Nigerians. Methods: Twelve different types of skin lightening creams (Extra white, Make me white, Extract, Perfect white, UV lightening, Pure skin, Body treat, Dodo up, Bronze tone, White express, Peau Claire and Otentika) available Nigerian markets were randomly collected based on their usage and availability. Three non- lightening creams served as the controls for this study. Levels of mercury, lead, cadmium, chromium and arsenic were determined in both lightening and non- lightening creams (controls) using atomic absorption spectrophotometer (AAS). Results: All lightening creams 12/12 (100%) contained significantly (p&lt;0.05) higher levels of mercury compared with the control. 11/12 (91.7%) of the lightening creams contained significantly (p&gt;0.05) higher levels of lead compared with the control. Levels of arsenic were significantly (p&lt;0.05) higher in 11/12 (91.7%) of the lightening creams compared with control. Levels of cadmium increase significantly (p&lt;0.05) in 4/12 (22.92%) of the lightening creams compared with the control. 4/12 (22.92%) of the lightening creams contained significantly (p&lt;0.05) higher levels of chromium compared with control.

scholarly journals COMPARISON OF TIMBAL LEVELS (Pb) ON BLOOD SHELLS (Anadara granosa) AND BAKAU (Shell Telescopium telescopium) IN PLACE AUCTION OF FISH (TPI) LAPPA SINJAI DISTRICT

2020 ◽  
Vol 15 (2) ◽  
pp. 137
Author(s):  
Rahmawati Rahmawati ◽  
Wa Ode Rustiah ◽  
Nurhidayat Nurhidayat ◽  
Novie Rezkiyana Dewi
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Negative Impact ◽  
The Body ◽  
Atomic Absorption Spectrophotometer ◽  
National Standard ◽  
P Value ◽  
Marine Animals ◽  
Significant Difference ◽  
Anadara Granosa

Shellfish is one of the sea products that is very popular with the community including the community in Sinjai Regency as a potential coastal and fishery resources that have a fish auction place (TPI). Shellfish are one of the most efficient marine animals to accumulate heavy metals. This is due to the fact that shellfish live in the bottom sedimentary layer of water, move very slowly, and their food comes from detritus in the bottom waters, so the chance of entering heavy metals into the body is very large. Shells can be contaminated by lead (Pb) which enters the body of water through the crystallization of lead in the air with the help of rain water. Lead which accumulates in water and sediments will enter the water and accumulate in the water causing toxic effects on the organisms in it, including some types of shellfish. If humans consume shells that contain heavy metals in high enough quantities will have a negative impact on health. In the human body, heavy metals will combine with active enzymes to become inactive enzymes, so the synthesis of red blood grains (Hb) can be inhibited, consequently it can cause anemia. The purpose of the study was to determine lead content (Pb) in the sample of shellfish. The object of research is blood shells and mangrove shells, analyzed using the Atomic Absorption Spectrophotometer (SSA) method with a total sample of 10. The results obtained by lead (Pb) in blood shells (Anadara granosa) with an average of 0.0439 mg / kg while the mangrove shells (Telescopium telescopium) with an average of 0.0176 mg / kg. Both shellfish samples did not exceed the maximum limit set by the Indonesian National Standard (SNI) of 1.5 mg / kg. Based on the data analysis test p value = 0.011 <0.05 which can be concluded that there is a significant difference between the levels of lead (Pb) in blood shells (Anadara granosa) and mangrove shells (Telescopium telescopium). Keywords: Blood Shells (Anadara granosa), Mangrove Shells (Telescopium telescopium), Lead (Pb),                  Atomic Absorption Spectrophotometer (SSA)

PERFORMANCE OF TORIA (BRASSICA COMPESTRIS SYN. RAPA L.) VARIETY: RAJ VIJAY TORIA-2 IN CENTRAL, EASTERN AND NORTH-EASTERN STATES OF INDIA UNDER RAINFED CONDITION

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
VIMLESH KUMAR TIWARI
Keyword(s):  
Seed Yield ◽  
Rainfed Condition ◽  
Significant Difference ◽  
North Eastern ◽  
Finger Printing ◽  
Quantitative And Qualitative Traits ◽  
Central Eastern ◽  
Dna Finger Printing ◽  
Mature Seeds ◽  
Weight Trait

Performance of developed genotype RMT 08-2 was evaluated in central, eastern and north-eastern states of India under rain-fed condition for quantitative and qualitative traits. It gave highest seed yield over checks in zone III and V. Morphologically plants were erect, medium spreading in nature and primary branches with dichotomous habit. Plants height ranged from 107124 (cm) which matured in 82-112 days. Mature seeds were round in shape and blackish brown in colour. No significant difference between RVT-2 and checks were observed for test weight trait. An average oil yield 485 (kg/h) was recorded over 7 places which was 10% higher than both checks i.e. 14.12% and 11.24% under AICRP trials. Maximum seed yield was obtained on farmers field during 2013-14 and 2014-15 which was 1500 (kg/h) and 1215 (kg/h) that is 33.42% and 26.30% respectively over farmers own seeds. At Morena center, highest seed yield (1753 kg/h) over Bhawani (1512 kg/h) was 15.94% higher than check whereas RVT-2 gave 2245 (kg/h) against Bhawani (1975 kg/h) which was 13.67% higher. DNA finger printing indicated that primers PUT-19, PUT-96, PUT-149, PUT-169, PUT-181 and PUT-271 are useful in generating unique profile of RVT-2 containing 27 bands for its discrimination from other varieties.

Three hundred years of House Sparrow (Passer domesticus) persecution in Germany

2007 ◽  
Vol 34 (2) ◽  
pp. 307-317 ◽  
Author(s):  
J. SEITZ
Keyword(s):  
Rural Areas ◽  
House Sparrow ◽  
Bird Species ◽  
Passer Domesticus ◽  
Second World War ◽  
Population Increase ◽  
World War ◽  
Large Numbers ◽  
Urban And Rural Areas ◽  
Second World

Modernization of agriculture, economic development and population increase after the end of the Thirty Years' War caused authorities in many parts of Germany to decree the eradication of so-called pest animals, including the House Sparrow. Farmers were given targets, and had to deliver the heads of sparrows in proportion to the size of their farms or pay fines. At the end of the eighteenth century German ornithologists argued against the eradication of the sparrows. During the mid-nineteenth century, C. L. Gloger, the pioneer of bird protection in Germany, emphasized the value of the House Sparrow in controlling insect plagues. Many decrees were abolished because either they had not been obeyed, or had resulted in people protecting sparrows so that they always had enough for their “deliveries”. Surprisingly, various ornithologists, including Ernst Hartert and the most famous German bird conservationist Freiherr Berlepsch, joined in the war against sparrows at the beginning of the twentieth century, because sparrows were regarded as competitors of more useful bird species. After the Second World War, sparrows were poisoned in large numbers. Persecution of sparrows ended in Germany in the 1970s. The long period of persecution had a significant but not long-lasting impact on House Sparrow populations, and therefore cannot be regarded as a factor in the recent decline of this species in urban and rural areas of western and central Europe.

Assessing Zinc Amassing in Forages, Buffalo Blood and Topsoil Collected from Sargodha City, Pakistan

2020 ◽  
Vol 71 (8) ◽  
pp. 240-248
Author(s):  
Kafeel Ahmad ◽  
Yongjun Yang ◽  
Zafar Iqbal Khan ◽  
Nimra Arshad ◽  
Tasneem Ahmad ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Blood Sample ◽  
Analysis Of Variance ◽  
Atomic Absorption Spectrophotometer ◽  
Metal Analysis ◽  
Heavy Metal Analysis

The article is focused on estimation of Zinc in the roadside forages, and blood of buffaloes feeding on these forages. This study was carried out in Sargodha during December 2015 to January 2016 (winter) and May 2016 to June 2016 (summer). Five road sites (Mateela, Faisalabad roadside, Shaheenabad roadside, Bhalwal roadside and 50 chak) were selected from sampling of forages, soil and buffalo blood sample. Heavy metal analysis of all digested samples was done with atomic absorption spectrophotometer. Analysis of variance and correlation was done with two way ANOVA. This study regarding the accumulation of zinc in forages, soil and the buffalo blood would help the authorities to exactly determine the agents which are responsible for increasing pollution in the environment.

DETERMINING AMMONIUM OXALATE-EXTRACTABLE Si IN SOILS

1986 ◽  
Vol 66 (4) ◽  
pp. 751-755 ◽  
Author(s):  
C. WANG ◽  
P. A. SCHUPPLI
Keyword(s):  
Atomic Absorption ◽  
Key Words ◽  
Podzolic Soil ◽  
Ammonium Oxalate ◽  
Podzolic Soils ◽  
Significant Difference ◽  
Key Words Oxalate

Determination of oxalate-extractable Si and Al is useful in assessing the degree of accumulation of allophane-like materials in Podzolic soils. Three procedures were tested for determining Si: manual spectrophotometry, automated spectrophotometry and atomic absorption. For concentrations of oxalate-extractable Si above 0.5 g kg−1, there was no significant difference among results by the three procedures. For lower concentrations of Si, results by atomic absorption were higher than those by the spectrophotometric procedures. Determination by Si by autoanalyzer is the preferred procedure as it is convenient, sensitive and reliable. Key words: Oxalate Si, Podzolic soil, autoanalyzer

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