Iran

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Mashhad's tap water is treated but distribution and aging pipes can make quality variable; drink bottled water as a tourist and use bottled/filtered water for brushing teeth and washing produce. Avoid ice and raw salads unless you know they were prepared with safe water.

Tap water in Esfahan is treated but due to aging pipes, mineral content and occasional local contamination, drink bottled or properly filtered/boiled water; use bottled water for brushing teeth and washing raw fruit, though showering is fine.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Tap water in Tabriz is treated but aging pipes and occasional quality issues make bottled or well-filtered water a safer choice for drinking; avoid ice and wash or peel produce with bottled/boiled water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Use bottled or properly filtered water for drinking and brushing teeth; avoid ice and raw produce washed in tap water. Showering is fine but take care not to swallow water.

Municipal water is treated but aging pipes and occasional local contamination make it risky for visitors; drink bottled or properly filtered water and use bottled water for brushing teeth or rinsing produce.

Use bottled water for drinking and brushing teeth; avoid ice and wash or peel fruit with bottled water. Showering is generally fine, but consider using a filter or bottled water if you stay long-term or have a sensitive stomach.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Tap water in Ardabil is treated but aging pipes and occasional local contamination mean tourists should use bottled or properly filtered/boiled water for drinking and brushing teeth.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Municipal tap water in Arak is treated but aging pipes and occasional local contamination make it risky for visitors; use bottled or properly filtered/boiled water for drinking and brushing teeth. Avoid ice and unwashed raw produce unless washed with bottled or boiled water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Water treatment meets standards, but aging pipes can introduce contaminants. Stick to bottled or filtered water.

Tap water is unsafe due to contamination. Strictly use bottled water for all consumption.