Chemistry Test lead case

What happens when lead enters the human body?

it is cummulative, which means it builds up overtime

• lead is distributed through the blood stream and can affect your brain, liver, kidney, and bonds

• lead is sotred in teeth and bonds

How many deaths does lead account for each year?

674,000 death

9.8% of global burden of intellectual disability

4% of global heart disease

5% of global burden of stroke

What is lead exposure generally from?

smelting, stripping lead, paint, leaded gas

or ingestion from contaiminated sources (dust, water, food)

11%/5%

What are Safe levels vs. actionable?

Safe = none

actionable = 15ppb >10%

What is the water chemistry of lead

Solid lead - PB can be oxidized to anion PB 2+

lead ion can either be soluable or insoluable in water f

What are factors for lead that can affect soluability

1. Acidity (more acidic → more soluable)

2. Temp (higher temp → more soluable)

3. Other IOns in soloutions