Nitrogen pollution: an assessment of its threat to amphibian survival.

Nitrogen pollution: an assessment of its threat to amphibian survival.

The potential for nitrate to affect amphibian survival was evaluated by examining the areas in North America where concentrations of nitrate in water occur above amphibian toxicity thresholds. Nitrogen pollution from anthropogenic sources enters bodies of water through agricultural runoff or percolation associated with nitrogen fertilization, livestock, precipitation, and effluents from industr...

Nutrient Pollution: A Persistent Threat to Waterways

Proximity to Pollution Sources and Risk of Amphibian Limb Malformation

The cause of limb deformities in wild amphibian populations remains unclear, even though the apparent increase in prevalence of this condition may have implications for human health. Few studies have simultaneously assessed the effect of multiple exposures on the risk of limb deformities. In a cross-sectional survey of 5,264 hylid and ranid metamorphs in 42 Vermont wetlands, we assessed indepen...

Air pollution: a threat to the health of our children.

BACKGROUND/METHODS Current air pollution levels pose a threat to the health of children starting from conception. The scientific evidence is presented for mortality, morbidity, and sub-clinical effects. The first section deals with exposure data, the following sections with the evidence of health effects from epidemiology and toxicology leading to recommendations. RESULTS Improved air quality...

Antimicrobial resistance-a threat to neonate survival.

Improvements in child survival have contributed much of the gains in life expectancy at birth during the last two decades. At a global level, neonatal mortality has decreased from 36 to 19 deaths per 1000 livebirths between 1990 and 2012. However, the reduction in neonatal mortality between 1990 and 2015 (47%) has lagged behind that of postneonatal under-5 years mortality (58%) globally. The Ev...