Zeenat Bano1,*, Sajid Abdullah1, Waqas Ahmad2, Muhammad Anjum Zia3 and Wardah Hassan1
...nc (Zn), copper (Cu) and nickel (Ni) were higher in river water as compared to farm and hatchery. Different organs of fish collected from different sites showed variations in their metal concentration. In Indus River fish, the concentrations of metals were highest in liver followed by kidney and gills. The Indus River fish also exhibited highest SOD activity in all the organs as compared to farm and hatchery fish. The activity of CAT enzyme was higher i...
Maryum Fakhar, Iqra Jabbar, Anjum Nasim Sabri*
...lm forming ability under nickel stress. Our previous results showed that these bacteria are capable of producing proline, glycine betaine, choline and other osmolytes under NaCl stress. On the basis of those results it is hypothesized that this osmolyte production ability may help them in nickel resistance under Ni salt stress. This study was centered on assessing the adherence, motility, hydrophobicity, aggregation and biof...
Soumble Zulfiqar1, Khuram Shehzad1, Sana Tahir1, Khalid A. Al-Ghanim2 and Abdul Rauf Shakoori1,2,3,*
...rified to homogeneity by nickel affinity chromatography. Enzyme assays of CueO protein with phenolic substrates revealed its laccase activity. The kinetic studies showed Km value of 0.2µM, kKcat 0.68 S-1 and Kcat/km 1.2S-1 µM-1 for 2,6-Dimethoxyphenol (DMP) and Km value of 0.25mM, Kcat 300 S-1 and Kcat/Km=1200S-1mM-1 for Syringaldazine (SGZ). Regulation of cueO in response to ...
Barkat Ali1,2, Wasim Sajjad1,2,3, Imran Khan1, Muhammad Rafiq1, Sahib Zada1, Aamer Ali Shah1 and Fariha Hasan1,*
..., cadmium, chromium, and nickel were shown by strains like; Alcaligenes spp. N14 and N21, Bordetella spp. N30 and Streptomyces spp. N28. Alcaligenes spp. N27 and Lysinibacillus spp. P17 showed strong activity against all the three ATCC strains. The study concludes that the bacteria isolated from the rocks having substantial resistance to heavy metals are also showing good antibacterial activity as well as, and they are also p...
Hafiz Abdullah Shakir1*, Javed Iqbal Qazi2, Abdul Shakoor Chaudhry2, Muhammad Irfan3, Muhammad Khan1, Shaukat Ali4 and Saima Shahzad Mirza5
...mium (Cr), cadmium (Cd), nickel (Ni), copper (Cu), manganese (Mn), mercury (Hg), lead (Pb), zinc (Zn) and iron (Fe) in fish scales. A study was conducted on total 216 fish specimens, comprised of 3 fish species (Catla catla (thaila), Labeo rohita (rohu) and Cirrhinus mrigala (mori)) from river Ravi during two flow seasons at four sampling locations including upstream Lahore Siphon = A, Shahdera = B, Sunder=C and downstream Balloki headworks = D. All the metal ...
Afzal Nimra1, Zulfiqar Ali1*, Safdar Sidra 2, Rida Ahmad1
...m (Cd), arsenic (As) and nickel (Ni) were evaluated in the Orthopaedic Operation Theater (OOT), Orthopaedic Wards (OW) and Orthopaedic Emergency Rooms (OER) of six hospitals, in Lahore, Pakistan. Overall, the average levels of Cd, As and Ni (31, 20, and 37 ng/m3) were lower indoors as compared to outdoors (39, 21, and 51 ng/m3) except Pb. The high indoor levels of Pb (113 ng/m3) as compared to outdoors (85 ng/m3) sug...
Korkmaz Bellitürk1, Zubair Aslam2, Ali Ahmad2* and Sami ur Rehman2
...etals i.e. tin, cadmium, nickel, lead, mercury and chromium parameters were evaluated. The experimental design was Complete Randomized Design (CRD). The data obtained was investigated at 1% probability and Least Significant Difference (LSD) test was used to segregate the significant means. The outcomes showed that percentages of EC, C:N ratio, heavy metals and organic matter decreased in vermicompost as compared to raw material while the proportion of pH, Ca, ...
Hina Imtiaz1*, Salma Khalid2, Kashaf Riaz1, Muhammad Arshad Ullah3 and Zubair Rehman4
Fazal Wahid1, Arif Ullah Shah1, Muhammad Rahim2*, Fazal Dad1, Nadir Khan1, Saqib Ullah1, Yasir Ali1 and Sayed Ashfaq Ali Shah3
Saima Naz1*, Ahmad Manan Mustafa Chatha2, Saba Saeed1
...;">The exposure of acute nickel toxicity (96-hr LC50 and lethal concentrations) for two fish species viz. Labeo rohita and Cirrhinus mrigala was determined in this study. During metal stress trials both species were kept at constant temperature (32°C), pH (7) and hardness (250 mg L-1) of water. Physico-chemical parameters of test medium were monitored regularly. The observed mean LC50 and lethal concentrations for Cirrhinus mrigala were 55.85 ± 2.84...
Safia Bibi1, Saima Naz1*, Saba Saeed1, Ahmad Manan Mustafa Chatha2
...mium (Cr), mercury (Hg), nickel (Ni) and cadmium (Cd) causes histopathological variations and several diseases in various fishes of Pakistan. Extensive histopathological variations in gills, liver, kidney and skin of different fishes were noticed when exposed to heavy metals, thus indicating severity of heavy metal toxicity. The current study was focused on the toxicological effect of Cr, Hg, Ni and Cd in different type of fishes and it would be useful for the...
Bingjie Zhou1, Hitesh Bhagavanbhai Mangukiya1, Siva Bharath Merugu1, Fakhar-un-Nisa Yunus1, Yuchen Fan1, Zhenghua Wu1,* and Dawei Li1,2,*
Noor Muhammad Khan1,2, Tariq Mahmood Khalil1,3*, Rashid Rehan2 and Iftikhar Zeb4
...d 4.55mg kg-1, while for nickel (Ni) the average uptake was, 2.80 and 2.76 mg kg-1 in ex-situ and in-situ plantation respectively. Whereas for A.d. the HM uptake was 3.22, 2.27, and 1.49 mg kg-1for Cu, Pb, and Ni, respectively in ex-situ plantation. The uptake of Chromium (Cr) and Cadmium (Cd) was insignificant due to their low concentration in wastewater. The T.l had the average removal efficiency for Pb, Ni, and Cu in the order of 36.9%, 27.3%, and 22.9%, wh...
Heavy metals (HMs) are harmful and lethal at negligible levels and non-biodegradable in the typical ecosystem and constitutes animal, human and environmental hazards. They are divided into toxic metals like Lead, Cadmium, Arsenic, etc. and essential elements like copper, zinc, manganese, iron, nickel and chromium. Additionally, could be categorized into two groups based on the natural and anthropogenic sources releasing origins. Population and industrial expansion led to food contamination with HMs. Poisonous metals can be transferred from irrigation water to agricultural soils, agricultural operations, air pollution, animal feed, and packaging materials. Toxic metals are non-biodegradable, non-thermos degradable, and exceedingly stable in the ecosystem; as a result, they quickly build in various foods. Metal pollution of many foods, including agricultural commodities, and animal protein sources such as fish, milk, meat, and eggs, poses a hazard to food safety and security. Toxic metal pollution of irrigation water, agricultural soils, plants, and animals result in their integration into the food chain, posing a health hazard to humans. Most metals are harmful to animals and humans and accumulate in several organs like the skeleton, hepatic tissue, spleen, and renal tissues. Metals have a deleterious impact on the production of plants and animals. As a result, several remediation strategies have become necessary to limit the hazardous HMs pathway into the food chain and the human body. Metal nanoparticles are employed in beneficial applications, although they are associated with specific hazards.
Keywords | Food contamination, Heavy metals, Nanoparticles, Pollution sources, Remedy, Soil contamination
..., zinc, manganese, iron, nickel and chromium. Additionally, could be categorized into two groups based on the natural and anthropogenic sources releasing origins. Population and industrial expansion led to food contamination with HMs. Poisonous metals can be transferred from irrigation water to agricultural soils, agricultural operations, air pollution, animal feed, and packaging materials. Toxic metals are non-biodegradable, non-thermos degradable, and exceed...
Roheela Yasmeen1,3* , Faheem Hafeez1 , Umme Ammara1 , Rubab Younas1 , Sibtain Ahmad2 , Zulfiqar Ali3, Zaheer Ahmad Nasir4
Moazama Batool1*, Saima Naz2*, Sheeza Bano1, Sadia Nazir3, Ghulam Abbas4, Ahmad Manan Mustafa Chatha5, Maria Lateef2 and Fatima Yasmin2
...on comprising lead (Pb), nickel (Ni), and cadmium (Cd) was assessed on two freshwater fish species, Catla catla and Labeo rohita, employing probit analysis. Over a period of 90 days, mortality served as the primary toxicity criterion. The experiments were conducted under consistent conditions of pH (7), temperature (28.00.00°C), and water hardness (198.00 mgL-1), with three replicates for each dosage in the tests. Significant variations were noted in the L...
ZAFAR IQBAL KHAN1*, KAFEEL AHMAD1, KHALID NAWAZ2, MUHAMMAD NADEEM3, ASMA ASHFAQ1,
BABAR MUNIR1, HAFSA MEMOONA3, MADIHA SANA3, FARZANA SHAHEEN1, NAUNAIN MEHMOOD4, HIRA MUQADAS4, MAHPARA SHEZADI5, IJAZ RASOOL NOORKA6, HUMAYUN BASHIR1,
MUDASRA MUNIR1, ILKER UGULU7 & YUNUS DOGAN7
...anganese, zinc, lead and nickel in the environment are currently increasing, mainly due to human activities. Zinc is essential element for several biochemical processes in plants. Any of these metals, at high concentrations in soil, can cause severe damage to physiological and biochemical activities of plants. Scarcity of fresh water in agricultural area enforced farmers to use industrial effluent and domestic wastewater for irrigation purpose. Ramzan sugar mi...
KAFEEL AHMAD1, NIMRA ARSHAD1, ZAFAR IQBAL KHAN1, KINZA WAJID1, HUMAYUN BASHIR1, IJAZ RASOOL NOORKA2, MAHPARA SHEHZADI3, HAFSA MEMONA4, MADIHA SANA4, KHALID NAWAZ5, MUDASRA MUNIR1, IFRA SALEEM MALIK1, TASAWAR ABBAS6, ABRAR HUSSAIN7, MUHAMMAD SHER8, MUHAMMAD FAHAD ULLAH6, MUHAMMAD AKRAM QAZI9, MUHAMMAD NADEEM10, MUHAMMAD RIZWAN QURESHI10
...tion in all samples. The nickel concentration found in the samples of soil, forage and blood was highest in the samples collected from site II (Chak 50 SB). The bio concentration factor found for nickel was highest in the samples of site II. On the other hand, the bio concentration factor for blood and forage was highest in the samples collected form site IV (Shaheenabad Road). The correlation result showed that Ni was posit...
Muhammad Ahsan Raza1,2*, Nabila Roohi2, Abdul Qayyum Khan Sulehria3 and Muhammad Khalil Ahmad Khan4
Hina Jabeen*, Usman Irshad, Kainat Azhar, Alisha Fatima, Asma Zaheer Abbasi, Tayyaba Sadia and Jaweria Aqeel
...ns of cadmium, chromium, nickel, lead and iron were analyzed in the fish muscles by Atomic Absorption Spectrophotometer. Among metals, the highest concentrations of Pb (3.391 ± 0.002 µg/g) followed by Cr (0.311 ± 0.001 µg/g) were estimated in the freshwater fish species L. rohita collected from Rawal Dam and W. attu from River Chenab, respectively. The maximum concentrations of Cr (4.589 ± 1.008 µg/g) and Fe (41.176 &plus...
