Heavy metals – Page 2

Avian toxicoses: a review

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Pet and wild birds can be poisoned by many common substances including metals found in cage materials, kitchen cookware fumes, toxic plants, chocolate, salt, and rodent poison. Symptoms vary by toxin but can include difficulty breathing, weakness, seizures, and bleeding. Treatment focuses on removing the source, supportive care, and specific antidotes when available, though diagnosis is often challenging due to the small size of birds.

Investigation of the simulated microgravity impact on heavy metal biosorption by Saccharomyces cerevisiae

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This research shows that yeast commonly used in bread and beer production can absorb dangerous heavy metals from water, and this ability is even stronger in simulated weightlessness conditions. The metal-yeast complexes remain stable as they pass through the digestive system, making them safe for astronauts and potentially useful for cleaning contaminated drinking water in the food and beverage industry.

Heavy Metal Exposure During Pregnancy and Its Association With Adverse Birth Outcomes: A Cross-Sectional Study

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This study examined how exposure to multiple heavy metals during pregnancy affects babies’ health in a Chinese population. Researchers measured metal levels in urine samples from nearly 500 pregnant women and found that higher combined metal exposure increased risks of premature birth and low birth weight. The metal arsenic was particularly harmful for preterm birth risk, while selenium, thallium, and manganese together increased low birth weight risk. These findings suggest that pregnant women in areas with heavy metal pollution should take steps to reduce their exposure.

The Production of Biochar and Its Impact on the Removal of Various Emerging Pollutants from Wastewater: A Review

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Biochar is a charcoal-like material made from plant and animal waste through a heating process called pyrolysis. This material acts like a sponge that can trap harmful pollutants from contaminated water, including heavy metals, medicines, and pesticides. Scientists have developed various ways to improve biochar’s cleaning power, making it an affordable and environmentally friendly solution for purifying water.

Heavy Metal Contamination and Risk Assessment in Soil–Wheat/Corn Systems near Metal Mining Areas in Northwestern China

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Mining operations in Jinchang City have contaminated farmland soils with dangerous levels of nickel, copper, and cobalt. These toxic metals accumulate in wheat and corn crops grown in the area, posing serious health risks—especially to children. The study found that children consuming these locally grown grains face significantly elevated health dangers, and the contaminated soils require immediate cleanup before farming can safely resume.

Diet and Blood Concentrations of Essential and Non-Essential Elements among Rural Residents in Arctic Russia

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Indigenous Arctic residents who eat traditional foods like fish and hunted game get important nutrients but may also absorb toxic metals like mercury, arsenic, and lead. This study of Russian Arctic communities found that eating different fish species and hunted goose was linked to higher levels of these metals in the blood. Interestingly, selenium from fish appeared to help protect against mercury toxicity, though the metals still warrant concern.

Bibliometric analysis of European publications between 2001 and 2016 on concentrations of selected elements in mushrooms

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Researchers reviewed 200 European studies from 2001-2016 examining how mushrooms absorb heavy metals from soil. They found that mushrooms, especially edible species, can accumulate dangerous metals like cadmium, lead, and mercury, with the highest contamination in mushrooms from polluted industrial areas. Turkey, Poland, Spain, and Czech Republic led research efforts on this topic. Scientists increasingly used health risk assessment methods to determine safe consumption levels of mushrooms from different habitats.

Assessment of the Impact of Metals in Wild Edible Mushrooms from Dambovita County, Romania, on Human Health

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This study examined 18 types of wild mushrooms commonly eaten in Romania to measure their metal content. Researchers found that while mushrooms provide important minerals like iron and zinc, some species accumulate harmful metals like cadmium and chromium. Children are at greater risk from eating these mushrooms than adults because their smaller bodies absorb proportionally more of the contaminants. Some mushroom species pose significant cancer risks from metal exposure.

Research Topic: Heavy metals