Table 2.

Summary of lead concentrations in food, Guangzhou City, 2014–2017 (mg/kg).

Food Category	Samples	Mean	SD a	P50	P95	>LOD (%)
Rice and rice products	990	0.0341	0.0430	0.0151	0.1341	73.2
Wheat flour and products	1165	0.0509	0.0634	0.0260	0.1707	81.7
Flour products with fillings	26	0.0158	0.0118	0.0130	0.0427	88.5
Other cereals	479	0.0206	0.0264	0.0090	0.0820	57.6
Pulses	110	0.0272	0.0262	0.0200	0.0700	80.0
Bean products	110	0.0151	0.0245	0.0089	0.0645	74.5
Preserved eggs	34	0.0341	0.1646	0.0040	0.2660	64.7
Eggs	306	0.0099	0.0115	0.0060	0.0307	68.6
Pig meat	221	0.0127	0.0122	0.0100	0.0300	69.7
Livestock meat b	86	0.0083	0.0113	0.0045	0.0356	62.8
Poultry	99	0.0115	0.0162	0.0090	0.0280	83.8
Edible offal	140	0.0240	0.0319	0.0190	0.0700	89.3
Meat products	72	0.0394	0.0262	0.0345	0.0837	100.0
Milk powder	145	0.0071	0.0081	0.0050	0.0200	22.8
Milk	208	0.0036	0.0023	0.0500	0.0050	3.4
Leafy vegetables c	356	0.0354	0.0464	0.0170	0.1432	77.2
Fruiting vegetables d	163	0.0130	0.0167	0.0060	0.0468	62.0
Root and tuber vegetables	5	0.0230	0.0124	0.0220	0.3500	100.0
Legume vegetables	115	0.0209	0.0360	0.0050	0.1096	62.6
Bulb vegetables	42	0.0505	0.0616	0.0270	0.2140	64.3
Fruit	223	0.0160	0.0181	0.0090	0.0594	67.3
Fish	536	0.0134	0.0178	0.0068	0.0483	70.9
Crustaceans	143	0.0109	0.0101	0.0074	0.0322	68.5
Mollusks	318	0.1384	0.1117	0.1200	0.3351	99.7
Dried seafood	24	0.3219	0.2603	0.2365	0.9000	100.0
Algae	175	0.3947	0.4349	0.3400	0.8938	78.9
Edible fungi	48	0.0729	0.0147	0.0750	0.0900	100.0
Total	6339	0.0433	0.1104	0.0130	0.1710	71.6

Notes: ^a Standard deviation; ^b livestock meat excluding pork; ^c leafy vegetables including immature stem vegetables and Brassica vegetables; ^d fruiting vegetables include eggplant, tomato, green pepper, cucumber, cucurbit, and others. LOD: limit of detection; P50: 50th percentile; P95: 95th percentile.