inorganic nutrient pollution

1) phosphates in sewage effluent and eroded soil particles 2) nitrates washed off farmland from manure and artificial fertilisers

1) cultural eutrophication 2) effects on human health

the enrichment of a water body with nutrients, usually in excess, which results in the growth of plants and algae which causes deoxygenation of a water body

1) release of harmful toxins which can effect animals and humans which drink from the water 2) prevents the photosynthesis of submerged plant species which may die disrupting the food web 3) deoxygenation

1) harm to babies 2) links to cancer

1) nitrates are converted to nitrites by gut bacteria 2) nitrites react with haemoglobin in the blood decreasing its ability to carry oxygen 3) causes blue baby syndrome 4) more sever in babies as they have more of the gut bacteria as well as more reactive haemoglobin to nitrites

1) gut bacteria convert nitrates to nitrites 2) nitrites may be converted to nitrosamines which are carcinogenic and may cause stomach cancer

1) reduce nitrate fertilisers 2) reduce ploughing at times of heavy rain 3) reduce cultivation of crops with high nitrate requirements 4) add iron III sulfate to remove phosphates from liquid effluents 5) add iron III sulfate to water bodies to reduce solubility of phosphates